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  </channel><item rdf:about="https://yalebooks.yale.edu/book/9780300251104/what-complex-system">
    <title>What Is a Complex System? | Yale University Press</title>
    <dc:date>2021-07-11T20:18:09+00:00</dc:date>
    <link>https://yalebooks.yale.edu/book/9780300251104/what-complex-system</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[What is a complex system? Although “complexity science” is used to understand phenomena as diverse as the behavior of honeybees, the economic markets, the human brain, and the climate, there is no agreement about its foundations. In this introduction for students, academics, and general readers, philosopher of science James Ladyman and physicist Karoline Wiesner develop an account of complexity that brings the different concepts and mathematical measures applied to complex systems into a single framework. They introduce the different features of complex systems, discuss different conceptions of complexity, and develop their own account. They explain why complexity science is so important in today’s world.

]]></description>
<dc:subject>complex-systems philosophy-of-science books to-read unavailable-as-yet</dc:subject>
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<item rdf:about="http://smaldino.com/wp/wp-content/uploads/2017/01/Smaldino2017-ModelsAreStupid.pdf">
    <title>Models Are Stupid, and We Need More of Them [PDF]</title>
    <dc:date>2017-09-23T14:06:56+00:00</dc:date>
    <link>http://smaldino.com/wp/wp-content/uploads/2017/01/Smaldino2017-ModelsAreStupid.pdf</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[It is my belief that the widespread inability to grasp the solution to the Monty Hall problem stems from a failure to properly model the scenario. You should switch doors because regardless of which door you picked initially, the host can always show you one with a goat. Being shown a goat therefore has no bearing on the probability that your initial choice was correct. Since that probability is 1/3, there is a 2/3 chance that you were wrong and the cash is behind the remaining door. Thus, two out of three times, switching is the right move. The common intuition that the choice is instead a 50-50 split between two options is erroneous.
Readers of this chapter are likely to be interested in social behaviors and their underlying psychological mechanisms. These systems tend to be quite a bit more complicated than a simple game show problem. This should concern us. Being an expert does not inoculate us from the failure of our limited imaginations, which evolved to solve problems quite different from those of interest to behavioral scientists. We could use some help.]]></description>
<dc:subject>models philosophy-of-science psychology complex-systems define-your-terms via:? complexology visualization learning-by-watching</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:8759d7cd82c0/</dc:identifier>
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<item rdf:about="https://arxiv.org/abs/1705.10831">
    <title>[1705.10831] The Self-Organization of Dragon Kings</title>
    <dc:date>2017-06-11T10:38:13+00:00</dc:date>
    <link>https://arxiv.org/abs/1705.10831</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Surprisingly common outliers of a distribution tail, known as Dragon Kings, are seen in many complex systems. It has been argued that the general conditions for Dragon Kings in self-organized systems are high system coupling and low heterogeneity. In this Letter, we introduce a novel mechanism of Dragon Kings by discussing two closely-related stylized models of cascading failures. Although the first variant (based on simple contagion spreading and inoculation) exhibits well-studied self-organized criticality, the second one (based on both simple and complex contagion spreading) creates self-organized Dragon Kings in the failure size distribution. Next, we begin to understand the mechanistic origin of these Dragon Kings by mapping the probability of an initial cascade to a generalized birthday problem, which helps demonstrate that the Dragon King cascade is due to initial failures whose size exceeds a threshold that is infinitesimal compared to the size of the network. We use this finding to predict the onset of Dragon Kings with high accuracy using only logistic regression. Finally, we devise a simple control strategy that can decrease the frequency of Dragon Kings by orders of magnitude. We conclude with remarks on the applicability of both models to natural and engineered systems.
]]></description>
<dc:subject>self-organization complex-systems power-laws rather-interesting simulation to-write-about</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:df292d8ab14f/</dc:identifier>
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<item rdf:about="https://arxiv.org/abs/1701.09046">
    <title>[1701.09046] An Extremal Optimization approach to parallel resonance constrained capacitor placement problem</title>
    <dc:date>2017-02-19T12:17:23+00:00</dc:date>
    <link>https://arxiv.org/abs/1701.09046</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Installation of capacitors in distribution networks is one of the most used procedure to compensate reactive power generated by loads and, consequently, to reduce technical losses. So, the problem consists in identifying the optimal placement and sizing of capacitors. This problem is known in the literature as optimal capacitor placement problem. Neverthless, depending on the location and size of the capacitor, it may become a harmonic source, allowing capacitor to enter into resonance with the distribution network, causing several undesired side effects. In this work we propose a parsimonious method to deal with the capacitor placement problem that incorporates resonance constraints, ensuring that every allocated capacitor will not act as a harmonic source. This proposed algorithm is based upon a physical inspired metaheuristic known as Extremal Optimization. The results achieved showed that this proposal has reached significant gains when compared with other proposals that attempt repair, in a post-optimization stage, already obtained solutions which violate resonance constraints.
]]></description>
<dc:subject>engineering-design complex-systems operations-research multiobjective-optimization robustness electromagnetism to-write-about rather-interesting optimization nudge-targets consider:feature-discovery</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:5ee98f7c3264/</dc:identifier>
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<item rdf:about="https://arxiv.org/abs/1603.09419#">
    <title>[1603.09419] The free energy requirements of biological organisms; implications for evolution</title>
    <dc:date>2016-07-04T00:30:18+00:00</dc:date>
    <link>https://arxiv.org/abs/1603.09419#</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Recent advances in nonequilibrium statistical physics have provided unprecedented insight into the thermodynamics of dynamic processes. The author recently used these advances to extend Landauer's semi-formal reasoning concerning the thermodynamics of bit erasure, to derive the minimal free energy required to implement an arbitrary computation. Here, I extend this analysis, deriving the minimal free energy required by an organism to run a given (stochastic) map π from its sensor inputs to its actuator outputs. I use this result to calculate the input-output map π of an organism that optimally trades off the free energy needed to run π with the phenotypic fitness that results from implementing π. I end with a general discussion of the limits imposed on the rate of the terrestrial biosphere's information processing by the flux of sunlight on the Earth.
]]></description>
<dc:subject>complex-systems hey-I-know-this-guy theoretical-biology information-theory to-write-about</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3b56963fedbe/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1605.08717#">
    <title>[1605.08717] Predicting patterns of long-term adaptation and extinction with population genetics</title>
    <dc:date>2016-06-29T11:13:32+00:00</dc:date>
    <link>http://arxiv.org/abs/1605.08717#</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Population genetics struggles to model extinction; standard models track the relative rather than absolute fitness of genotypes, while the exceptions describe only the short-term transition from imminent doom to evolutionary rescue. But extinction can result from failure to adapt not only to catastrophes, but also to a backlog of environmental challenges. We model long-term evolution to long series of small challenges, where fitter populations reach higher population sizes. The population's long-term fitness dynamic is well approximated by a simple stochastic Markov chain model. Long-term persistence occurs when the rate of adaptation exceeds the rate of environmental deterioration for some genotypes. Long-term persistence times are consistent with typical fossil species persistence times of several million years. Immediately preceding extinction, fitness declines rapidly, appearing as though a catastrophe disrupted a stably established population, even though gradual evolutionary processes are responsible. New populations go through an establishment phase where, despite being demographically viable, their extinction risk is elevated. Should the population survive long enough, extinction risk later becomes constant over time.
]]></description>
<dc:subject>theoretical-biology population-biology self-organization complex-systems power-laws nudge-targets consider:stress-testing consider:simulation</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:e355b9695d0e/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1511.06026">
    <title>[1511.06026] Packings of 3D stars: Stability and structure</title>
    <dc:date>2015-12-14T13:48:55+00:00</dc:date>
    <link>http://arxiv.org/abs/1511.06026</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We describe a series of experiments involving the creation of cylindrical packings of star-shaped particles, and an exploration of the stability of these packings. The stars cover a broad range of arm sizes and frictional properties. We carried out three different kinds of experiments, all of which involve columns that are prepared by raining star particles one-by-one into hollow cylinders. As an additional part of the protocol, we sometimes vibrated the column before removing the confining cylinder. We rate stability in terms of r, the ratio of the mass of particles that fall off a pile when it collapsed, to the total particle mass. The first experiment involved the intrinsic stability of the pile when the confining cylinder was removed. The second kind of experiment involved adding a uniform load to the top of the column, and then determining the collapse properties. A third experiment involved testing stability to tipping of the piles. We find a stability diagram relating the pile height, h, vs. pile diameter, delta, where the stable and unstable regimes are separated by a boundary that is roughly a power-law in h vs. delta with an exponent that is less than one. Increasing friction and vibration both tend to stabilize piles, while increasing particle size can destabilize the system under certain conditions.
]]></description>
<dc:subject>self-assembly self-organization physics! experiment granular-materials complex-systems</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d989a16211a7/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics!"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:experiment"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
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</item>
<item rdf:about="http://arxiv.org/abs/1510.02778">
    <title>[1510.02778] What did Erwin Mean? The Physics of Information from the Materials Genomics of Aperiodic Crystals and Water to Molecular Information Catalysts and Life</title>
    <dc:date>2015-11-01T09:18:09+00:00</dc:date>
    <link>http://arxiv.org/abs/1510.02778</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Erwin Schrodinger famously and presciently ascribed the vehicle transmitting the hereditary information underlying life to an `aperiodic crystal'. We compare and contrast this, only later discovered to be stored in the linear biomolecule DNA, with the information bearing, layered quasi-one-dimensional materials investigated by the emerging field of chaotic crystallography. Despite differences in functionality, the same information measures capture structure and novelty in both, suggesting an intimate coherence between the information character of biotic and abiotic matter---a broadly applicable physics of information. We review layered solids and consider three examples of how information- and computation-theoretic techniques are being applied to understand their structure. In particular, (i) we review recent efforts to apply new kinds of information measures to quantify disordered crystals; (ii) we discuss the structure of ice I in information-theoretic terms; and (iii) we recount recent experimental results on tris(bicyclo[2.1.1]hexeno)benzene TBHB), showing how an information-theoretic analysis yields additional insight into its structure. We then illustrate a new Second Law of Thermodynamics that describes information processing in active low-dimensional materials, reviewing Maxwell's Demon and a new class of molecular devices that act as information catalysts. Lastly, we conclude by speculating on how these ideas from informational materials science may impact biology.
]]></description>
<dc:subject>complexology complex-systems information-theory Crutchfield philosophy-of-science</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:03e7c6440c63/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:information-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:Crutchfield"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:philosophy-of-science"/>
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</item>
<item rdf:about="http://arxiv.org/abs/1507.08455">
    <title>[1507.08455] Semipredictable dynamical systems</title>
    <dc:date>2015-09-12T20:54:15+00:00</dc:date>
    <link>http://arxiv.org/abs/1507.08455</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[A new class of dynamical systems, termed semipredictable dynamical systems, is presented. The spatiotemporal evolution of these systems have both predictable and unpredictable traits, as found in natural complex systems. We show that the dynamics of any deterministic nonlinear cellular automaton with p possible dynamical states can be decomposed at each instant of time in a unique superposition of N cellular automata with p0, p1,... pN−1 dynamical states each, and where the pk∈ℕ, k∈[0,N−1] are the N prime factors of p. These N cellular automata work on different layers of the dynamics of the original cellular automaton and even when the full spatiotemporal evolution can be unpredictable, we show that certain traits can be exactly predicted. We present an explicit example of such a system, consisting on a cellular automaton acting on a neighborhood of two sites and 12 symbols and whose rule table corresponds to the smallest Moufang loop M12(S3,2).
]]></description>
<dc:subject>complex-systems nonlinear-dynamics cellular-automata prediction rather-interesting formalization nudge-targets consider:looking-to-see</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d94342158e41/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinear-dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cellular-automata"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:prediction"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:rather-interesting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:formalization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:looking-to-see"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1210.2706">
    <title>[1210.2706] Optimality Gap of Asymptotically-derived Prescriptions with Applications to Queueing Systems</title>
    <dc:date>2015-08-29T11:39:28+00:00</dc:date>
    <link>http://arxiv.org/abs/1210.2706</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[In complex systems, it is quite common to resort to approximations when optimizing system performance. These approximations typically involve selecting a particular system parameter and then studying the performance of the system as this parameter grows without bound. In such an asymptotic regime, we prove that if the approximation to the objective function is accurate up to (1), then under some regularity conditions, the prescriptions that are derived from this approximation are o(1)-optimal, i.e., their optimality gap is asymptotically zero. A consequence of this result is that the well-known square-root staffing rules for capacity sizing in M/M/s and M/M/s+M queues to minimize the sum of linear expected steady-state customer waiting costs and linear capacity costs are o(1)-optimal. We also discuss extensions of this result for the case of non-linear customer waiting costs in these systems.
]]></description>
<dc:subject>complex-systems nonlinear-dynamics prediction approximation rather-interesting nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:5ebb9be83096/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinear-dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:prediction"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:approximation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:rather-interesting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1508.06768">
    <title>[1508.06768] Effects of Boundary Conditions on Single-File Pedestrian Flow</title>
    <dc:date>2015-08-29T11:28:49+00:00</dc:date>
    <link>http://arxiv.org/abs/1508.06768</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[In this paper we investigate effects of boundary conditions on one dimensional pedestrian flow which involves purely longitudinal interactions. Qualitatively, stop-and-go waves are observed under closed boundary condition and dissolve when the boundary is open. To get more detailed information the fundamental diagrams of the open and closed systems are compared using Voronoi-based measurement method. Higher maximal specific flow is observed from the pedestrian movement at open boundary condition.
]]></description>
<dc:subject>self-organization pattern-formation pedestrians complex-systems nonlinear-dynamics collective-behavior nudge-targets consider:feature-discovery</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:4a6a807674f4/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:pattern-formation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:pedestrians"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinear-dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:collective-behavior"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:feature-discovery"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1504.01256">
    <title>[1504.01256] Non-linear Dynamics, Emergent Behaviors and Controlled Expansions: Towards Effective Modeling of the Congested Traffic</title>
    <dc:date>2015-08-23T12:32:34+00:00</dc:date>
    <link>http://arxiv.org/abs/1504.01256</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We propose a framework for constructing microscopic traffic models from microscopic acceleration patterns that can in principle be experimental measured and proper averaged. The exact model thus obtained can be used to justify the consistency of various popular models in the literature. Assuming analyticity of the exact model, we suggest that a controlled expansion around the constant velocity, uniform headway "ground state" is the proper way of constructing various different effective models. Assuming a unique ground state for any fixed average density, we discuss the universal properties of the resulting effective model, focusing on the emergent quantities of the coupled non-linear ODEs. These include the maximum and minimum headway that give the coexistence curve in the phase diagram, as well as an emergent intrinsic scale that characterizes the strength of interaction between clusters, leading to non-trivial cluster statistics when the unstable ground state is randomly perturbed. Utilizing the universal properties of the emergent quantities, a simple algorithm for constructing an effective traffic model is also presented. The algorithm tunes the model with statistically well-defined quantities extracted from the flow-density plot, and the resulting effective model naturally captures and predicts many quantitative and qualitative empirical features of the highway traffic, especially in the presence of an on-ramp bottleneck. The simplicity of the effective model provides strong evidence that stochasticity, diversity of vehicle types and modeling of complicated individual driving behaviors are \emph{not} fundamental to many observations of the complex spatiotemporal patterns in the real traffic dynamics. We also propose the nature of the congested phase can be well characterized by the long lasting transient states of the effective model, from which the wide moving jams evolve.
]]></description>
<dc:subject>emergent-design planning complex-systems nonlinear-dynamics models modeling performance-measure nudge-targets robustness</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:f2a64ec223fd/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergent-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:planning"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinear-dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:modeling"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:performance-measure"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robustness"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1507.01963">
    <title>[1507.01963] Tiling solutions for optimal biological sensing</title>
    <dc:date>2015-07-11T10:55:44+00:00</dc:date>
    <link>http://arxiv.org/abs/1507.01963</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Biological systems, from cells to organisms, must respond to the ever changing environment in order to survive and function. This is not a simple task given the often random nature of the signals they receive, as well as the intrinsically stochastic, many body and often self-organized nature of the processes that control their sensing and response and limited resources. Despite a wide range of scales and functions that can be observed in the living world, some common principles that govern the behavior of biological systems emerge. Here I review two examples of very different biological problems: information transmission in gene regulatory networks and diversity of adaptive immune receptor repertoires that protect us from pathogens. I discuss the trade-offs that physical laws impose on these systems and show that the optimal designs of both immune repertoires and gene regulatory networks display similar discrete tiling structures. These solutions rely on locally non-overlapping placements of the responding elements (genes and receptors) that, overall, cover space nearly uniformly.
]]></description>
<dc:subject>theoretical-biology complex-systems coordination tiling collective-intelligence partitioning simulation nudge-targets consider:performance-measures</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:e8ad8613b230/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:theoretical-biology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:coordination"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:tiling"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:collective-intelligence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:partitioning"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:performance-measures"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://lanl.arxiv.org/abs/1408.3270">
    <title>[1408.3270] JIDT: An information-theoretic toolkit for studying the dynamics of complex systems</title>
    <dc:date>2014-12-28T13:49:43+00:00</dc:date>
    <link>http://lanl.arxiv.org/abs/1408.3270</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Complex systems are increasingly being viewed as distributed information processing systems, particularly in the domains of computational neuroscience, bioinformatics and Artificial Life. This trend has resulted in a strong uptake in the use of (Shannon) information-theoretic measures to analyse the dynamics of complex systems in these fields. We introduce the Java Information Dynamics Toolkit (JIDT): a Google code project which provides a standalone, (GNU GPL v3 licensed) open-source code implementation for empirical estimation of information-theoretic measures from time-series data. While the toolkit provides classic information-theoretic measures (e.g. entropy, mutual information, conditional mutual information), it ultimately focusses on implementing higher-level measures for information dynamics. That is, JIDT focusses on quantifying information storage, transfer and modification, and the dynamics of these operations in space and time. For this purpose, it includes implementations of the transfer entropy and active information storage, their multivariate extensions and local or pointwise variants. JIDT provides implementations for both discrete and continuous-valued data for each measure, including various types of estimator for continuous data (e.g. Gaussian, box-kernel and Kraskov-Stoegbauer-Grassberger) which can be swapped at run-time due to Java's object-oriented polymorphism. Furthermore, while written in Java, the toolkit can be used directly in MATLAB, GNU Octave, Python and other environments. We present the principles behind the code design, and provide several examples to guide users.
]]></description>
<dc:subject>information-theory complex-systems data-analysis time-series models-and-modes library open-source</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ae642f397719/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:information-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:data-analysis"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:time-series"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models-and-modes"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:library"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:open-source"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1311.6700">
    <title>[1311.6700] Failure mechanisms of load sharing complex systems</title>
    <dc:date>2014-12-08T11:52:05+00:00</dc:date>
    <link>http://arxiv.org/abs/1311.6700</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We investigate the failure mechanisms of load sharing complex systems. The system is composed of multiple nodes or components whose failures are determined based on the interaction of their respective strengths and loads (or capacity and demand respectively) as well as the ability of a component to share its load with its neighbors when needed. We focus on two distinct mechanisms to model the interaction between components' strengths and loads. The failure mechanisms of these two models demonstrate temporal scaling phenomena, phase transitions and multiple distinct failure modes excited by extremal dynamics. For critical ranges of parameters the models demonstrate power law and exponential failure patterns. We identify the similarities and differences between the two mechanisms and the implications of our results to the failure mechanisms of complex systems in the real world.
]]></description>
<dc:subject>network-theory robustness complex-systems infrastructure engineering-design simulation nudge-targets performance-measure</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:940c8f427221/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robustness"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:infrastructure"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:performance-measure"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1306.2480">
    <title>[1306.2480] Boolean constraint satisfaction problems for reaction networks</title>
    <dc:date>2014-10-16T12:15:30+00:00</dc:date>
    <link>http://arxiv.org/abs/1306.2480</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We define and study a class of (random) Boolean constraint satisfaction problems representing minimal feasibility constraints for networks of chemical reactions. The constraints we consider encode, respectively, for hard mass-balance conditions (where the consumption and production fluxes of each chemical species are matched) and for soft mass-balance conditions (where a net production of compounds is in principle allowed). We solve these constraint satisfaction problems under the Bethe approximation and derive the corresponding Belief Propagation equations, that involve 8 different messages. The statistical properties of ensembles of random problems are studied via the population dynamics methods. By varying a chemical potential attached to the activity of reactions, we find first order transitions and strong hysteresis, suggesting a non-trivial structure in the space of feasible solutions.
]]></description>
<dc:subject>boolean-networks constraint-satisfaction algorithms rather-interesting stamp-collecting modeling complex-systems nudge-targets re-representation</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d65a7c3744eb/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:boolean-networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:constraint-satisfaction"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:rather-interesting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:stamp-collecting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:modeling"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:re-representation"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1309.2175">
    <title>[1309.2175] Cascading failures in spatially-embedded random networks</title>
    <dc:date>2014-10-09T11:28:34+00:00</dc:date>
    <link>http://arxiv.org/abs/1309.2175</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Cascading failures constitute an important vulnerability of interconnected systems. Here we focus on the study of such failures on networks in which the connectivity of nodes is constrained by geographical distance. Specifically, we use random geometric graphs as representative examples of such spatial networks, and study the properties of cascading failures on them in the presence of distributed flow. The key finding of this study is that the process of cascading failures is non-self-averaging on spatial networks, and thus, aggregate inferences made from analyzing an ensemble of such networks lead to incorrect conclusions when applied to a single network, no matter how large the network is. We demonstrate that this lack of self-averaging disappears with the introduction of a small fraction of long-range links into the network. We simulate the well studied preemptive node removal strategy for cascade mitigation and show that it is largely ineffective in the case of spatial networks. We introduce an altruistic strategy designed to limit the loss of network nodes in the event of a cascade triggering failure and show that it performs better than the preemptive strategy. Finally, we consider a real-world spatial network viz. a European power transmission network and validate that our findings from the study of random geometric graphs are also borne out by simulations of cascading failures on the empirical network.
]]></description>
<dc:subject>network-theory robustness complex-systems engineering-design nudge-targets performance-measure</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:7fc314b3e466/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robustness"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:performance-measure"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1310.0670">
    <title>[1310.0670] A Uniquely Ergodic Cellular Automaton</title>
    <dc:date>2014-08-31T12:10:40+00:00</dc:date>
    <link>http://arxiv.org/abs/1310.0670</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We construct a one-dimensional uniquely ergodic cellular automaton which is not nilpotent. This automaton can perform asymptotically infinitely sparse computation, which nevertheless never disappears completely. The construction builds on the self-simulating automaton of G\'acs. We also prove related results of dynamical and computational nature, including the undecidability of unique ergodicity, and the undecidability of nilpotency in uniquely ergodic cellular automata.
]]></description>
<dc:subject>cellular-automata complex-systems multiscale-behavior representation nudge-targets consider:inverse-problem consider:feature-extraction</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ea0a01ed8208/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cellular-automata"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:multiscale-behavior"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:representation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:inverse-problem"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:feature-extraction"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1212.1740">
    <title>[1212.1740] A Graph Partitioning Approach to Predict Patterns in Lateral Inhibition Systems</title>
    <dc:date>2014-08-22T12:32:16+00:00</dc:date>
    <link>http://arxiv.org/abs/1212.1740</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We analyze pattern formation on a network of cells where each cell inhibits its neighbors through cell-to-cell contact signaling. The network is modeled as an interconnection of identical dynamical subsystems each of which represents the signaling reactions in a cell. We search for steady state patterns by partitioning the graph vertices into disjoint classes, where the cells in the same class have the same final fate. To prove the existence of steady states with this structure, we use results from monotone systems theory. Finally, we analyze the stability of these patterns with a block decomposition based on the graph partition.
]]></description>
<dc:subject>pattern-formation prediction models complex-systems emergent-design nudge-targets rather-interesting discrete-mathematics dynamical-systems</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:882eaa11291b/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:pattern-formation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:prediction"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergent-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:rather-interesting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:discrete-mathematics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamical-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1407.0952">
    <title>[1407.0952] Predicting Lifetime of Dynamical Networks Experiencing Persistent Random Attacks</title>
    <dc:date>2014-07-27T12:22:41+00:00</dc:date>
    <link>http://arxiv.org/abs/1407.0952</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Empirical estimation of critical points at which complex systems abruptly flip from one state to another is among the remaining challenges in network science. However, due to the stochastic nature of critical transitions it is widely believed that critical points are difficult to estimate, and it is even more difficult, if not impossible, to predict the time such transitions occur [1-4]. We analyze a class of decaying dynamical networks experiencing persistent attacks in which the magnitude of the attack is quantified by the probability of an internal failure, and there is some chance that an internal failure will be permanent. When the fraction of active neighbors declines to a critical threshold, cascading failures trigger a network breakdown. For this class of network we find both numerically and analytically that the time to the network breakdown, equivalent to the network lifetime, is inversely dependent upon the magnitude of the attack and logarithmically dependent on the threshold. We analyze how permanent attacks affect dynamical network robustness and use the network lifetime as a measure of dynamical network robustness offering new methodological insight into system dynamics.
]]></description>
<dc:subject>complex-systems prediction network-theory robustness experiment simulation nudge-targets interesting</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:2b0d15e2fab4/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:prediction"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robustness"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:experiment"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:interesting"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1308.6759">
    <title>[1308.6759] Prospect Agents and the Feedback Effect on Price Fluctuations</title>
    <dc:date>2014-04-04T11:37:12+00:00</dc:date>
    <link>http://arxiv.org/abs/1308.6759</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[A microeconomic approach is proposed to derive the fluctuations of risky asset price, where the market participants are modeled as prospect trading agents. As asset price is generated by the temporary equilibrium between demand and supply, the agents' trading behaviors can affect the price process in turn, which is called the feedback effect. The prospect agents make actions based on their reactions to gains and losses, and as a consequence of the feedback effect, a relationship between the agents' trading behavior and the price fluctuations is constructed, which explains the implied volatility skew and smile observed in actual market.
]]></description>
<dc:subject>markets economics agent-based multi-scale emergence complex-systems rather-interesting</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:860e52bfd4dd/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:markets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:economics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agent-based"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:multi-scale"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:rather-interesting"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1402.6712">
    <title>[1402.6712] Complex Beauty</title>
    <dc:date>2014-03-13T21:50:19+00:00</dc:date>
    <link>http://arxiv.org/abs/1402.6712</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Complex systems and their underlying convoluted networks are ubiquitous, all we need is an eye for them. They pose problems of organized complexity which cannot be approached with a reductionist method. Complexity science and its emergent sister network science both come to grips with the inherent complexity of complex systems with an holistic strategy. The relevance of complexity, however, transcends the sciences. Complex systems and networks are the focal point of a philosophical, cultural and artistic turn of our tightly interrelated and interdependent postmodern society. Here I take a different, aesthetic perspective on complexity. I argue that complex systems can be beautiful and can the object of artification - the neologism refers to processes in which something that is not regarded as art in the traditional sense of the word is changed into art. Complex systems and networks are powerful sources of inspiration for the generative designer, for the artful data visualizer, as well as for the traditional artist. I finally discuss the benefits of a cross-fertilization between science and art.
]]></description>
<dc:subject>complex-systems aesthetics philosophy</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:f3e75268c299/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:aesthetics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:philosophy"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1312.6422">
    <title>[1312.6422] A General Criterion for Liquefaction in Granular Layers with Heterogeneous Pore Pressure</title>
    <dc:date>2013-12-30T13:41:06+00:00</dc:date>
    <link>http://arxiv.org/abs/1312.6422</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Fluid-saturated granular and porous layers can undergo liquefaction and lose their shear resistance when subjected to shear forcing. In geosystems, such a process can lead to severe natural hazards of soil liquefaction, accelerating slope failure, and large earthquakes. Terzaghi's principle of effective stress predicts that liquefaction occurs when the pore pressure within the layer becomes equal to the applied normal stress on the layer. However, under dynamic loading and when the internal permeability is relatively small the pore pressure is spatially heterogeneous and it is not clear what measurement of pore pressure should be used in Terzaghi's principle. Here, we show theoretically and demonstrate using numerical simulations a general criterion for liquefaction that applies also for the cases in which the pore pressure is spatially heterogeneous. The general criterion demands that the average pore pressure along a continuous surface within the fluid-saturated granular or porous layer is equal to the applied normal stress.
]]></description>
<dc:subject>materials-science granular-materials complex-systems simulation phase-transitions interesting nudge-targets consider:edge-cases consider:amelioration-strategies</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3a50f8c51c6f/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:materials-science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:phase-transitions"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:interesting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:edge-cases"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:consider:amelioration-strategies"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1309.3461">
    <title>[1309.3461] On the Continuum Approximation of the On-and-off Signal Control on Dynamic Traffic Networks</title>
    <dc:date>2013-11-28T11:57:27+00:00</dc:date>
    <link>http://arxiv.org/abs/1309.3461</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[In the modeling of traffic networks, a signalized junction is typically treated using a binary variable to model the on-and-off nature of signal operation. One way of approximating such signal control is through a continuum approach where the on-and-off control variable is replaced by a priority parameter. Advantages of such approximation include elimination of the need for binary variables, lower time resolution requirements, and more flexibility and robustness in a decision environment. It also resolves the issue of discontinuous travel time functions arising from the context of dynamic traffic assignment. 
Despite these advantages in application, it is not clear from a theoretical point of view how accurate is such continuum approach; i.e., to what extent is this a valid approximation for the on-and-off case. The goal of this paper is to answer these basic research questions and provide further guidance for the application of such continuum signal model. In particular, by employing the Lighthill-Whitham-Richards model (Lighthill and Whitham, 1955; Richards, 1956) on a traffic network, we investigate the convergence of the on-and-off signal model to the continuum model in regimes of diminishing signal cycles. We also provide numerical analysis on the continuum approximation error when the signal cycle is not infinitesimal. As we explain, such convergence results and error estimates depend on the type of fundamental diagram assumed and whether or not vehicle spillback occurs in a network. Finally, a traffic signal optimization problem is presented and solved which illustrates the unique advantages of applying the continuum signal model instead of the on-and-off one.
]]></description>
<dc:subject>traffic-models complex-systems engineering-design algorithms representation nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ad50b42556ca/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:traffic-models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:representation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1311.5843">
    <title>[1311.5843] A traffic model based on fuzzy cellular automata</title>
    <dc:date>2013-11-27T15:26:00+00:00</dc:date>
    <link>http://arxiv.org/abs/1311.5843</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Cellular automata (CA) play an important role in the development of computationally efficient microscopic traffic models and recently have gained considerable importance as a mean of optimising traffic control strategies. However, real-time application of the available CA models in traffic control systems is a difficult task due to their discrete and stochastic nature. This paper introduces a novel method for simulation of signalised traffic streams, which combines CA and fuzzy numbers. The introduced traffic simulation algorithm eliminates main drawbacks of the CA approach, i.e. necessity of multiple Monte Carlo simulations and calibration issues. Computational cost of traffic simulation for the proposed algorithm is considerably lower than the cost of simulation based on stochastic CA. Thus, the simulation results can be obtained in a much shorter time. Experiments confirmed that the simulation results for the introduced algorithm are consistent with that observed for stochastic CA. The proposed simulation algorithm is suitable for real-time applications in traffic control systems.
]]></description>
<dc:subject>complex-systems engineering-design fuzzy-systems cellular-automata nudge-targets traffic-models robotics</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:bf176a30675b/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:fuzzy-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cellular-automata"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:traffic-models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robotics"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0811.2690">
    <title>[0811.2690] A framework for the local information dynamics of distributed computation in complex systems</title>
    <dc:date>2013-11-03T10:55:41+00:00</dc:date>
    <link>http://arxiv.org/abs/0811.2690</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[The nature of distributed computation has often been described in terms of the component operations of universal computation: information storage, transfer and modification. We review the first complete framework that quantifies each of these individual information dynamics on a local scale within a system, and describes the manner in which they interact to create non-trivial computation where "the whole is greater than the sum of the parts". We describe the application of the framework to cellular automata, a simple yet powerful model of distributed computation. This is an important application, because the framework is the first to provide quantitative evidence for several important conjectures about distributed computation in cellular automata: that blinkers embody information storage, particles are information transfer agents, and particle collisions are information modification events. The framework is also shown to contrast the computations conducted by several well-known cellular automata, highlighting the importance of information coherence in complex computation. The results reviewed here provide important quantitative insights into the fundamental nature of distributed computation and the dynamics of complex systems, as well as impetus for the framework to be applied to the analysis and design of other systems.
]]></description>
<dc:subject>cellular-automata complexology complex-systems emergence physics information-theory</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:6ac2853da559/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cellular-automata"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:information-theory"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1309.6273">
    <title>[1309.6273] Precision and reproducibility of macroscopic developmental patterns</title>
    <dc:date>2013-10-21T12:38:04+00:00</dc:date>
    <link>http://arxiv.org/abs/1309.6273</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Developmental processes in multicellular organisms occur far from equilibrium, yet produce complex patterns with astonishing reproducibility. We measure the precision and reproducibility of bilaterally symmetric fly wings across the natural range of genetic and environmental conditions and find that wing patterns are specified with identical spatial precision and are reproducible to within a single cell width. The early fly embryo operates at a similar degree of reproducibility, suggesting that the overall spatial precision of morphogenesis in Drosophila performs at the single cell level, arguably the physical limit of what a biological system can achieve.
]]></description>
<dc:subject>developmental-biology emergence biological-engineering complex-systems biologically-inspired nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:2429ec6dee27/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:developmental-biology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:biological-engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:biologically-inspired"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1309.7107">
    <title>[1309.7107] Self-Organized Cooperative Criticality in Coupled Complex Systems</title>
    <dc:date>2013-10-06T13:15:32+00:00</dc:date>
    <link>http://arxiv.org/abs/1309.7107</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We show that the coupled complex systems can evolve into a new kind of self-organized critical state where each subsystem is not critical, however, they cooperate to be critical. This criticality is different from the classical BTW criticality where the single system itself evolves into a critical state. We also find that the outflows can be accumulated in the coupled systems. This will lead to the emergency of spatiotemporal intermittency in the critical state.
]]></description>
<dc:subject>complex-systems self-organization hierarchy probably-want-to-check systems-thinking how-you-draw-the-lines</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:5786484cef03/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:hierarchy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:probably-want-to-check"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:systems-thinking"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:how-you-draw-the-lines"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1306.6214">
    <title>[1306.6214] Granular materials composed of shape-anisotropic grains</title>
    <dc:date>2013-06-30T11:12:01+00:00</dc:date>
    <link>http://arxiv.org/abs/1306.6214</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Granulate physics has made considerable progress during the past decades in the understanding of static and dynamic properties of large ensembles of interacting macroscopic particles, including the modeling of phenomena like jamming, segregation and pattern formation, the development of related industrial applications or traffic flow control. The specific properties of systems composed of shape-anisotropic (elongated or flattened) particles have attracted increasing interest in recent years. Orientational order and self-organization are among the characteristic phenomena that add to the special features of granular matter of spherical or irregular particles. An overview of this research field is given.
]]></description>
<dc:subject>granular-materials physics liquid-crystals self-organization dynamics complex-systems</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ace639792f45/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:liquid-crystals"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1304.5382">
    <title>[1304.5382] Amplitude mediated chimera states</title>
    <dc:date>2013-05-21T20:34:04+00:00</dc:date>
    <link>http://arxiv.org/abs/1304.5382</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We investigate the possibility of obtaining chimera state solutions of the non-local Complex Ginzburg-Landau Equation in the strong coupling limit when it is important to retain amplitude variations. Our numerical studies reveal the existence of a variety of amplitude mediated chimera states (including stationary and non-stationary two cluster chimera states), that display intermittent emergence and decay of amplitude dips in their phase incoherent regions. The single-cluster chimera state is seen to co-exist with the spatially uniform state of the system whereas both types of two cluster chimera states exist in the parameter region where the uniform as well as the next higher traveling wave state are stable. These amplitude mediated chimera states may find useful applications in understanding spatio-temporal patterns found in fluid flow experiments and other strongly coupled systems.
]]></description>
<dc:subject>dynamical-systems nonlinear-dynamics coupled-oscillators complex-systems nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:9e110012ddf0/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamical-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinear-dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:coupled-oscillators"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1210.8376">
    <title>[1210.8376] When does cyclic dominance lead to stable spiral waves?</title>
    <dc:date>2013-04-30T14:46:33+00:00</dc:date>
    <link>http://arxiv.org/abs/1210.8376</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Species diversity in ecosystems is often accompanied by the self-organisation of the population into fascinating spatio-temporal patterns. Here, we consider a two-dimensional three-species population model and study the spiralling patterns arising from the combined effects of generic cyclic dominance, mutation, pair-exchange and hopping of the individuals. The dynamics is characterised by nonlinear mobility and a Hopf bifurcation around which the system's phase diagram is inferred from the underlying complex Ginzburg-Landau equation derived using a perturbative multiscale expansion. While the dynamics is generally characterised by spiralling patterns, we show that spiral waves are stable in only one of the four phases. Furthermore, we characterise a phase where nonlinearity leads to the annihilation of spirals and to the spatially uniform dominance of each species in turn. Away from the Hopf bifurcation, when the coexistence fixed point is unstable, the spiralling patterns are also affected by nonlinear diffusion.]]></description>
<dc:subject>self-organization emergence stability complex-systems dynamical-systems nudge-targets robustness</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:f97ed096581f/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:stability"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamical-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robustness"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1303.5945">
    <title>[1303.5945] Condensation and Intermittency in an Open Boundary Aggregation-Fragmentation Model</title>
    <dc:date>2013-04-16T22:33:17+00:00</dc:date>
    <link>http://arxiv.org/abs/1303.5945</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[We study real space condensation in aggregation-fragmentation models where the total mass is not conserved, as in phenomena like cloud formation and intracellular trafficking. We study the scaling properties of the system with influx and outflux of mass at the boundaries using numerical simulations, supplemented by analytical results in the absence of fragmentation. The system is found to undergo a phase transition to an unusual condensate phase, characterized by strong intermittency and giant fluctuations of the total mass. A related phase transition also occurs for biased movement of large masses, but with some crucial differences which we highlight.]]></description>
<dc:subject>complex-systems simulation aggregation nudge-targets self-assembly steady-state</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:c6a7d7ec982c/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:aggregation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-assembly"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:steady-state"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1302.5847">
    <title>[1302.5847] Characterizing Branching Processes from Sampled Data</title>
    <dc:date>2013-04-14T11:54:00+00:00</dc:date>
    <link>http://arxiv.org/abs/1302.5847</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Branching processes model the evolution of populations of agents that randomly generate offsprings. These processes, more patently Galton-Watson processes, are widely used to model biological, social, cognitive, and technological phenomena, such as the diffusion of ideas, knowledge, chain letters, viruses, and the evolution of humans through their Y-chromosome DNA or mitochondrial RNA. A practical challenge of modeling real phenomena using a Galton-Watson process is the offspring distribution, which must be measured from the population. In most cases, however, directly measuring the offspring distribution is unrealistic due to lack of resources or the death of agents. So far, researchers have relied on informed guesses to guide their choice of offspring distribution. In this work we propose two methods to estimate the offspring distribution from real sampled data. Using a small sampled fraction of the agents and instrumented with the identity of the ancestors of the sampled agents, we show that accurate offspring distribution estimates can be obtained by sampling as little as 14% of the population.]]></description>
<dc:subject>inference statistics complex-systems cladistics nudge-targets algorithms models</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:895b7c262dba/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:inference"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:statistics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cladistics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1301.3571">
    <title>[1301.3571] Numerical Simulation of Three-Dimensional Dendrites using Coupled Map Lattices</title>
    <dc:date>2013-03-18T20:15:32+00:00</dc:date>
    <link>http://arxiv.org/abs/1301.3571</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Three dimensional dendrites are studied with a coupled map lattice model. We study the fractal dimensions, the f(\alpha) spectrum, the size distribution of sidebranches, and the envelope formed by sidebranches.]]></description>
<dc:subject>complex-systems diffusion-limited-aggregation materials-science simulation</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ec422fb14715/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:diffusion-limited-aggregation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:materials-science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1302.5105">
    <title>[1302.5105] Geometric visualization of self-propulsion in a complex medium</title>
    <dc:date>2013-03-07T11:14:39+00:00</dc:date>
    <link>http://arxiv.org/abs/1302.5105</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Combining geometric mechanics theory, laboratory robotic experiment and numerical simulation, we study the locomotion in granular media (GM) of the simplest non-inertial swimmer, the Purcell three-link swimmer. Using granular resistive force laws as inputs, the theory relates translation and rotation of the body to shape changes (movements of the links). This allows analysis, visualization, and prediction of effective movements that are verified by experiment. The geometric approach also facilitates comparison between swimming in GM and in viscous fluids.]]></description>
<dc:subject>robotics granular-fluids complex-systems engineering-design nudge-targets sand-swimming</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:db3607ee8b6d/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:robotics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-fluids"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:sand-swimming"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1212.5043">
    <title>[1212.5043] On shape and electrostatics: competing anisotropies in charged colloidal platelets</title>
    <dc:date>2013-02-17T13:20:06+00:00</dc:date>
    <link>http://arxiv.org/abs/1212.5043</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Charged platelet suspensions, such as swelling clays, disc-like mineral crystallites or exfoliated nanosheets, are ubiquitous in nature. Their puzzling phase behaviours are nevertheless still poorly understood: while Laponite and Bentonite clay suspensions form arrested states at low densities, others, like Beidellite and Gibbsite, exhibit an equilibrium isotropic-nematic transition at moderate densities. These observations raise fundamental questions about the influence of electrostatic interactions on the isotropic-nematic transition and more generally on the organisation of charged platelets. We investigate the competition between anisotropic excluded-volume and electrostatic interactions in suspensions of thin charged disks, by means of Monte-Carlo simulations. We show that the original intrinsic anisotropy of the electrostatic potential between charged platelets, obtained within the non-linear Poisson-Boltzmann formalism, not only captures the generic features of the complex phase diagram of charged colloidal platelets, but also predicts the existence of novel structures and arrested states upon varying density and ionic strength.]]></description>
<dc:subject>condensed-matter complex-systems self-organization exotic-matter such-mundane-stuff</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:a62e444852ef/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:exotic-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:such-mundane-stuff"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1208.0499">
    <title>[1208.0499] Particle shape dependence in 2D granular media</title>
    <dc:date>2012-08-28T11:54:23+00:00</dc:date>
    <link>http://arxiv.org/abs/1208.0499</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Particle shape is a key to the space-filling and strength properties of granular matter. We consider a shape parameter $eta$ describing the degree of distortion from a perfectly spherical shape. Encompassing most specific shape characteristics such as elongation, angularity and nonconvexity, $eta$ is a low-order but generic parameter that we used in a numerical benchmark test for a systematic investigation of shape-dependence in sheared granular packings composed of particles of different shapes. We find that the shear strength is an increasing function of $eta$ with nearly the same trend for all shapes, the differences appearing thus to be of second order compared to $eta$. We also observe a nontrivial behavior of packing fraction which, for all our simulated shapes, increases with $eta$ from the random close packing fraction for disks, reaches a peak considerably higher than that for disks, and subsequently declines as $eta$ is further increased. These findings suggest that a low-order description of particle shape accounts for the principal trends of packing fraction and shear strength. Hence, the effect of second-order shape parameters may be investigated by considering different shapes at the same level of $eta$.]]></description>
<dc:subject>granular-materials materials-science details-matter complex-systems condensed-matter nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:614f283ec499/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:materials-science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:details-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1104.3516">
    <title>[1104.3516] An adaptive hierarchical domain decomposition method for parallel contact dynamics simulations of granular materials</title>
    <dc:date>2012-01-02T21:41:49+00:00</dc:date>
    <link>http://arxiv.org/abs/1104.3516</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[A fully parallel version of the contact dynamics (CD) method is presented in this paper. For large enough systems, 100% efficiency has been demonstrated for up to 256 processors using a hierarchical domain decomposition with dynamic load balancing. The iterative scheme to calculate the contact forces is left domain-wise sequential, with data exchange after each iteration step, which ensures its stability. The number of additional iterations required for convergence by the partially parallel updates at the domain boundaries becomes negligible with increasing number of particles, which allows for an effective parallelization. Compared to the sequential implementation, we found no influence of the parallelization on simulation results.
]]></description>
<dc:subject>simulation condensed-matter granular-materials complex-systems</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:bbc2bb8ca7d4/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1110.5183">
    <title>[1110.5183] Diffusion of Information in Robot Swarms</title>
    <dc:date>2011-12-16T12:57:25+00:00</dc:date>
    <link>http://arxiv.org/abs/1110.5183</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["This work is devoted to communication approaches, which spread information in robot swarms. These mechanisms are useful for large-scale systems and also for such cases when a limited communication equipment does not allow routing of information packages. We focus on two approaches such as virtual fields and epidemic algorithms, discuss several aspects of hardware implementation and demonstrate experiments performed with microrobots "Jasmine"."]]></description>
<dc:subject>agent-based swarms communication complex-systems epidemiology dynamical-systems experiment</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:604292e64b6e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agent-based"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:swarms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:communication"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:epidemiology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamical-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:experiment"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0911.3482">
    <title>[0911.3482] Complexity of Networks (reprise)</title>
    <dc:date>2011-10-10T12:02:25+00:00</dc:date>
    <link>http://arxiv.org/abs/0911.3482</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Network or graph structures are ubiquitous in the study of complex systems. Often, we are interested in complexity trends of these system as it evolves under some dynamic. An example might be looking at the complexity of a food web as species enter an ecosystem via migration or speciation, and leave via extinction. 

In a previous paper, a complexity measure of networks was proposed based on the {em complexity is information content} paradigm. To apply this paradigm to any object, one must fix two things: a representation language, in which strings of symbols from some alphabet describe, or stand for the objects being considered; and a means of determining when two such descriptions refer to the same object. With these two things set, the information content of an object can be computed in principle from the number of equivalent descriptions describing a particular object. 

The previously proposed representation language had the deficiency that the fully connected and empty networks were the most complex for a given number of nodes. A variation of this measure, called zcomplexity, applied a compression algorithm to the resulting bitstring representation, to solve this problem. Unfortunately, zcomplexity proved too computationally expensive to be practical. 
In this paper, I propose a new representation language that encodes the number of links along with the number of nodes and a representation of the linklist. This, like zcomplexity, exhibits minimal complexity for fully connected and empty networks, but is as tractable as the original measure."]]></description>
<dc:subject>network-theory complexology complex-systems measurement perform structure-function-relations discrete-mathematics</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:0d5869bb40fc/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:measurement"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:perform"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:structure-function-relations"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:discrete-mathematics"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1108.0404">
    <title>[1108.0404] Exploiting Agent and Type Independence in Collaborative Graphical Bayesian Games</title>
    <dc:date>2011-08-25T12:29:58+00:00</dc:date>
    <link>http://arxiv.org/abs/1108.0404</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Efficient collaborative decision making is an important challenge for multiagent systems. Finding optimal joint actions is especially challenging when each agent has only imperfect information about the state of its environment. Such problems can be modeled as collaborative Bayesian games in which each agent receives private information in the form of its type. However, representing and solving such games requires space and computation time exponential in the number of agents. This article introduces collaborative graphical Bayesian games (CGBGs), which facilitate more efficient collaborative decision making by decomposing the global payoff function as the sum of local payoff functions that depend on only a few agents. We propose a framework for the efficient solution of CGBGs based on the insight that they posses two different types of independence, which we call agent independence and type independence. In particular, we present a factor graph representation that captures both forms of independence and thus enables efficient solutions. In addition, we show how this representation can provide leverage in sequential tasks by using it to construct a novel method for decentralized partially observable Markov decision processes. Experimental results in both random and benchmark tasks demonstrate the improved scalability of our methods compared to several existing alternatives."]]></description>
<dc:subject>collaboration agent-based complex-systems emergent-design nudge-targets</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d9155832ea5b/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:collaboration"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agent-based"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergent-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.flickr.com/photos/jrosenk/5717673682/in/photostream/">
    <title>Hyphae Lamp #1 | Flickr - Photo Sharing!</title>
    <dc:date>2011-05-14T19:11:21+00:00</dc:date>
    <link>http://www.flickr.com/photos/jrosenk/5717673682/in/photostream/</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>want complex-systems generative-art shapeways interior-design I-said-I-want-it-already things-to-try</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:f169fba28900/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:want"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:generative-art"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:shapeways"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:interior-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:I-said-I-want-it-already"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:things-to-try"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0912.5211">
    <title>[0912.5211] Fluctuation-Enhanced Sensing for Biological Agent Detection and Identification</title>
    <dc:date>2010-08-15T12:20:12+00:00</dc:date>
    <link>http://arxiv.org/abs/0912.5211</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["We survey and show our earlier results about three different ways of fluctuation-enhanced sensing of bio agent, the phage-based method for bacterium detection published earlier; sensing and evaluating the odors of microbes; and spectral and amplitude distribution analysis of noise in light scattering to identify spores based on their diffusion coefficient."
]]></description>
<dc:subject>bioengineering signal-processing detection algorithms bacteriophage complex-systems engineering-design</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3be2e57292b7/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:bioengineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:signal-processing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:detection"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:bacteriophage"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering-design"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1007.5088">
    <title>[1007.5088] Simplified Distributed Programming with Micro Objects</title>
    <dc:date>2010-08-12T22:58:59+00:00</dc:date>
    <link>http://arxiv.org/abs/1007.5088</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Developing large-scale distributed applications can be a daunting task. object-based environments have attempted to alleviate problems by providing distributed objects that look like local objects. We advocate that this approach has actually only made matters worse, as the developer needs to be aware of many intricate internal details in order to adequately handle partial failures. The result is an increase of application complexity. We present an alternative in which distribution transparency is lessened in favor of clearer semantics. In particular, we argue that a developer should always be offered the unambiguous semantics of local objects, and that distribution comes from copying those objects to where they are needed. We claim that it is often sufficient to provide only small, immutable objects, along with facilities to group objects into clusters."
]]></description>
<dc:subject>emergent-design complex-systems computer-science distributed-processing nudge-targets semantics</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:52a511daf8a9/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergent-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:computer-science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:distributed-processing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:semantics"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.nanex.net/20100506/FlashCrashAnalysis_Part4-1.html">
    <title>Flash Crash Analysis - May 6'th 2010 - Part 4 - Nanex</title>
    <dc:date>2010-08-10T11:32:27+00:00</dc:date>
    <link>http://www.nanex.net/20100506/FlashCrashAnalysis_Part4-1.html</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["While analyzing HFT (High Frequency Trading) quote counts, we were shocked to find cases where one exchange was sending an extremely high number of quotes for one stock in a single second: as high as 5,000 quotes in 1 second! During May 6, there were hundreds of times that a single stock had over 1,000 quotes from one exchange in a single second. Even more disturbing, there doesn't seem to be any economic justification for this. In many of the cases, the bid/offer is well outside the National Best Bid/Offer (NBBO). We decided to analyze a handful of these cases in detail and graphed the sequential bid/offers to better understand them. What we discovered was a manipulative device with destabilizing effect."
]]></description>
<dc:subject>trading financial-systems design-automation complex-systems emergent-design engineering data-analysis skynet</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:b3c3d54cc330/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:trading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:financial-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:design-automation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergent-design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:data-analysis"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:skynet"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1007.3908">
    <title>[1007.3908] The effect of force chains on granular acoustics</title>
    <dc:date>2010-08-03T01:16:03+00:00</dc:date>
    <link>http://arxiv.org/abs/1007.3908</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[can I have some of these particles, please?
]]></description>
<dc:subject>physics condensed-matter granular-materials complex-systems emergence</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3dbe793529a0/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:granular-materials"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1007.3373">
    <title>[1007.3373] A wavelet-based tool for studying non-periodicity</title>
    <dc:date>2010-07-29T12:32:58+00:00</dc:date>
    <link>http://arxiv.org/abs/1007.3373</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["This paper presents a new numerical approach to the study of non-periodicity in signals, which can complement the maximal Lyapunov exponent method for determining chaos transitions of a given dynamical system. The proposed technique is based on the continuous wavelet transform and the wavelet multiresolution analysis. A new parameter, the \textit{scale index}, is introduced and interpreted as a measure of the degree of the signal's non-periodicity. This methodology is successfully applied to three classical dynamical systems: the Bonhoeffer-van der Pol oscillator, the logistic map, and the Henon map."
]]></description>
<dc:subject>dynamical-systems nonlinearity physics complex-systems chaos algorithms signal-processing</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:484b134eb334/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamical-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nonlinearity"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:chaos"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:signal-processing"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1006.4515">
    <title>[1006.4515] Novel Properties of Frustrated Low Dimensional Magnets with Pentagonal Symmetry</title>
    <dc:date>2010-06-29T13:52:07+00:00</dc:date>
    <link>http://arxiv.org/abs/1006.4515</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Sometimes physics is just pretty.
]]></description>
<dc:subject>magnetism complex-systems Penrose-tiling condensed-matter complexology simulation pretty</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d8c32c54fd51/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:magnetism"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:Penrose-tiling"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:pretty"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1005.3694">
    <title>[1005.3694] Dynamics and Performance of Susceptibility Propagation on Synthetic Data</title>
    <dc:date>2010-05-24T21:05:18+00:00</dc:date>
    <link>http://arxiv.org/abs/1005.3694</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["The inverse Ising problem is a difficult combinatorial optimization problem in the class known as “NP-hard”. In theory, only approximate schemes, or methods that take more than polynomial time to find the answer are possible. Boltzmann Learning [1] is an iterative method where in one step the correlation functions are computed given an Ising model, and in another step the Ising model couplings are modified to adjust to data. In principle, Boltzmann learning can be employed to find the couplings with arbi- trary accuracy given accurate data and sufficient time, but the slow convergence of the Boltzmann learning makes it a very inefficient algorithm for most practical purposes."
]]></description>
<dc:subject>inverse-problems inference complex-systems ising-model nudge-targets</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:b562796e679e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:inverse-problems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:inference"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:ising-model"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge-targets"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1005.3757">
    <title>[1005.3757] Do Small Worlds Synchronize Fastest?</title>
    <dc:date>2010-05-24T20:45:09+00:00</dc:date>
    <link>http://arxiv.org/abs/1005.3757</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Small world networks interpolate between fully regular and fully random topologies and simultaneously exhibit large local clustering as well as short average path length. Small world topology has therefore been suggested to support network synchronization. Here we study the asymptotic speed of synchronization of coupled oscillators in dependence on the degree of randomness of their interaction topology in generalized Watts-Strogatz ensembles. We find that networks with fixed in-degree synchronize faster the more random they are, with small worlds just appearing as an intermediate case. For any generic network ensemble, if synchronization speed is at all extremal at intermediate randomness, it is slowest in the small world regime. This phenomenon occurs for various types of oscillators, intrinsic dynamics and coupling schemes."
]]></description>
<dc:subject>network-theory small-world message-passing coupled-oscillators complex-systems models-and-modes</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3371ba497961/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:small-world"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:message-passing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:coupled-oscillators"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models-and-modes"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://blogs.nature.com/basanta/2010/05/05/so-it-turns-out-that-software-and-living-beings-are-different?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=Feed%3A+ResearchBloggingAllEnglish+(Research+Blogging+-+English+-+All+Topics)">
    <title>So it turns out that software and living beings are different... - Cancerevo: Evolution and cancer Blog | Nature Publishing Group</title>
    <dc:date>2010-05-14T11:11:33+00:00</dc:date>
    <link>http://blogs.nature.com/basanta/2010/05/05/so-it-turns-out-that-software-and-living-beings-are-different?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=Feed%3A+ResearchBloggingAllEnglish+(Research+Blogging+-+English+-+All+Topics)</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["A recent study by researchers in Yale and published in PNAS shows that there are significant differences between the network topologies of living systems like E. coli and complex pieces of software such as the Linux Operating System."
]]></description>
<dc:subject>network-theory graph-theory complexology systems-biology complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:36650dddcea5/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:network-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:graph-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:systems-biology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://consumerist.com/2010/05/unusual-trading-volume-spikes-30-min-before-the-crash.html">
    <title>VIDEO: Unusual Selloff 30 Min Ahead Of Crash? - The Consumerist</title>
    <dc:date>2010-05-11T13:38:27+00:00</dc:date>
    <link>http://consumerist.com/2010/05/unusual-trading-volume-spikes-30-min-before-the-crash.html</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Might there be more to last week's crash than a "fat fingered" trade, or someone mistakenly entering a "billion" instead of a "million?" An online stock trader has a video showing an unusual spike in trading volume, followed by a very quick sell-off, by funds at large investment firms BlackRock and Vanguard and some other funds 30 to 15 minutes before the big crash. Prescience? Watch the video, check the logs, and decide for yourself."
]]></description>
<dc:subject>trading financial-engineering market-timing public-policy transparency-in-action complex-systems influence</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:81fd0314a425/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:trading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:financial-engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:market-timing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:public-policy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:transparency-in-action"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:influence"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1005.0420">
    <title>[1005.0420] Individual and Collective Behavior of Small Vibrating Motors Interacting Through a Resonant Plate</title>
    <dc:date>2010-05-09T14:03:22+00:00</dc:date>
    <link>http://arxiv.org/abs/1005.0420</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["We report on experiments of many small motors -- cell phone vibrators -- glued to and interacting through a resonant plate. We find that individual motors interacting with the plate demonstrate hysteresis in their steady-state frequency due to interactions with plate resonances. For multiple motors running simultaneously, the degree of synchronization between motors increases when the motors' frequencies are near a resonance of the plate, and the frequency at which the motors synchronize shows a history dependence."
]]></description>
<dc:subject>physics vibration complex-systems multiagent-systems oscillator-networks experiment</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:15a0c244e45c/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:vibration"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:multiagent-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:oscillator-networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:experiment"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://hth.eccs2010.eu/">
    <title>High Throughput Humanities</title>
    <dc:date>2010-03-21T00:05:27+00:00</dc:date>
    <link>http://hth.eccs2010.eu/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["The High Throughput Humanities satellite event at ECCS'10 establishes a forum for high throughput approaches in the humanities and social sciences, within the framework of complex systems science. The symposium aims to go beyond massive data aquisition and to present results beyond what can be manually achieved by a single person or a small group. Bringing together scientists, researchers, and practitioners from relevant fields, the event will stimulate and facilitate discussion, spark collaboration, as well as connect approaches, methods, and ideas.

The main goal of the event is to present novel results based on analyses of Big Data (see NATURE special issue 2009), focusing on emergent complex properties and dynamics, which allow for new insights, applications, and services."
]]></description>
<dc:subject>Morettism humanities academia conferences complex-systems misprision-about-data</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:c105de227683/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:Morettism"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:humanities"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:academia"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:conferences"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:misprision-about-data"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://seekingalpha.com/article/192875-a-time-to-trade-a-time-to-look?source=feed">
    <title>A Time to Trade, A Time to Look -- Seeking Alpha</title>
    <dc:date>2010-03-10T15:17:27+00:00</dc:date>
    <link>http://seekingalpha.com/article/192875-a-time-to-trade-a-time-to-look?source=feed</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["It is at the three or four times in a 24 hour period that forex traders are well advised to switch tack and reverse near-term directional thinking. The European and NYMEX close are the U.S. based things to get under our belts, because then, maybe, the equity markets can reveal where they really want to go. Traders looking for moves outside of 06:00 and 11:00 EDT, and maybe 14:30 EDT may just find themselves sitting and waiting, wondering why they just bought the high of the day that then reversed.
As the global economy travels through the contraction phase of its business cycle the leaning is towards looking at S&P futures trade to confirm sentiment. The speculators are never too far away from the S&P in times of fear; either selling into the fear of loss, or buying into the fear of missing profits. That is the reason for so much near-term volatility, and that is how things will stay until signs of GDP expansion are seen globally."
]]></description>
<dc:subject>finance trading complex-systems dynamics economics models social-networks</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:312925a971f1/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:finance"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:trading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:economics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-networks"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.itskeptic.org/shit-happens-or-how-i-learned-love-incident">
    <title>Shit happens, or how I learned to love the incident | The IT Skeptic</title>
    <dc:date>2010-03-09T16:03:13+00:00</dc:date>
    <link>http://www.itskeptic.org/shit-happens-or-how-i-learned-love-incident</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["This seems a reversal of some things I have said in the past about the need for change control. I said that "shit happens" is not an excuse any more. I still believe that. Just because some incidents will remain unpreventable doesn't mean that many others can't be prevented. Just because fixing a problem in one place means higher risks will be taken elsewhere doesn't mean we shouldn't fix the problems. And just because complex systems are impossible to stop breaking doesn't mean that there isn't negligence behind some breakages."
]]></description>
<dc:subject>project-management management risk-management cultural-assumptions engineering complex-systems failure</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:1dbcedc43474/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:project-management"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:management"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:risk-management"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cultural-assumptions"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:failure"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://angrybear.blogspot.com/2009/11/airlines-la-carte-pricing-deregulation.html">
    <title>Airlines, A La Carte Pricing, Deregulation and Executive Pay - A Hodge Podge ~ Angry Bear</title>
    <dc:date>2009-11-09T13:03:49+00:00</dc:date>
    <link>http://angrybear.blogspot.com/2009/11/airlines-la-carte-pricing-deregulation.html</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["It seems most people on that flight were aware of the $20 charge; overhead compartments were filled up completely, mostly with “carry-on” bags significantly larger than the one piece of luggage we had checked. As a result, a number of people had to check bags at the gate. Now here is the interesting thing… because so many people had to check bags at the gate, and those bags had to be available upon deplaning, none of us were allowed to exit the aircraft until after the bags that had been gate checked were brought up. Because so many people were trying to avoid a) waiting at the baggage carousel and b) paying twenty bucks for a piece of luggage, everyone had to wait longer. Perverse incentives lead to undesirable outcomes."
]]></description>
<dc:subject>economics game-theory complex-systems social-engineering planning transportation operations-research</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:fe0e5905b80e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:economics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:game-theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:planning"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:transportation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:operations-research"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/pdf/cs/0406011v1">
    <title>http://arxiv.org/pdf/cs/0406011v1</title>
    <dc:date>2009-11-05T22:04:10+00:00</dc:date>
    <link>http://arxiv.org/pdf/cs/0406011v1</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Causal state reconstruction has an important advan- tage over VLMM methods. Each state in a VLMM is represented by a single suffix, and consists of all and only the histories ending in that suffix. For many pro- cesses, the causal states contain multiple suffixes. In these cases, multiple “contexts” are needed to repre- sent a single causal state, so VLMMs are generally more complicated than the HMMs we build. The causal state model is the same as the minimal VLMM if and only if every causal state contains a single suffix. This is the case for the process in Fig. 3, where CSSR and VLMM methods will give the same results."
]]></description>
<dc:subject>Cosma-R-Shalizi learning-from-data models model-discovery statistics complex-systems time-series algorithms nudge</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:566753afcfa0/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:Cosma-R-Shalizi"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:learning-from-data"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:model-discovery"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:statistics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:time-series"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:nudge"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.technologyreview.com/blog/arxiv/23935/">
    <title>Technology Review: Blogs: arXiv blog: How Dragon Kings Could Trump Black Swans</title>
    <dc:date>2009-08-04T12:04:26+00:00</dc:date>
    <link>http://www.technologyreview.com/blog/arxiv/23935/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Sornette goes on to identify a number of data sets showing power laws with outliers that he says are the result of positive feedback mechanisms that make them much larger than their peers. He calls these events dragon kings. What's interesting about them is that they are entirely unaccounted for by a current understanding of power laws, from which Nassim Nicholas Taleb built the idea of black swans.

The special characteristic of dragon kings is that a positive feedback mechanism creates faster-than-exponential growth making them larger than expected."
]]></description>
<dc:subject>physics power-law extreme-values statistics models complex-systems positive-feedback</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:2b198efe7c40/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:power-law"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:extreme-values"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:statistics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:positive-feedback"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://kk.org/thetechnium/">
    <title>Kevin Kelly -- The Technium</title>
    <dc:date>2008-02-17T12:53:31+00:00</dc:date>
    <link>http://kk.org/thetechnium/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[The Goldilocks Point becomes public knowledge. Another of my consulting secrets revealed. Drat you, Kevin Kelly! You think too loud!
]]></description>
<dc:subject>self-organization smartmobs emergence design engineering social-engineering agents multiagent systems complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:93b741142f3a/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:self-organization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:smartmobs"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:emergence"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agents"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:multiagent"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://mpra.ub.uni-muenchen.de/6666/">
    <title>Do repeated game players detect patterns in opponents? Revisiting the Nyarko &amp; Schotter belief elicitation experiment - Munich RePEc Personal Archive</title>
    <dc:date>2008-01-30T12:56:04+00:00</dc:date>
    <link>http://mpra.ub.uni-muenchen.de/6666/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Simulations of these various belief formation models show that that this simple heuristic is quite eﬀective against other more complex ﬁctitious play models."
]]></description>
<dc:subject>duh economics fictitious-play planning models agents complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:9c97d24f7843/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:duh"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:economics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:fictitious-play"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:planning"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agents"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.garyjones.org/mt/archives/000676.html">
    <title>Muck and Mystery: Liberal Myths</title>
    <dc:date>2008-01-30T12:18:21+00:00</dc:date>
    <link>http://www.garyjones.org/mt/archives/000676.html</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>via:cshalizi agriculture environmentalism thoughtful myths complex-systems public-policy cultural-norms farming conservation</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:1f3ce160f3bf/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:via:cshalizi"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:agriculture"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:environmentalism"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:thoughtful"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:myths"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:public-policy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cultural-norms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:farming"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:conservation"/>
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</item>
<item rdf:about="http://www.pnas.org/cgi/content/abstract/104/17/6974">
    <title>Complex spatial group patterns result from different animal communication mechanisms</title>
    <dc:date>2008-01-04T14:39:59+00:00</dc:date>
    <link>http://www.pnas.org/cgi/content/abstract/104/17/6974</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>flocking artificial-life complex-systems complexology pattern-formation exploration algorithms biologically-inspired</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:f1ae619a74da/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:flocking"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:artificial-life"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complexology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:pattern-formation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:exploration"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:biologically-inspired"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.aintitcool.com/node/33481">
    <title>From Comic-Con comes the SOUTHLAND TALES poster and a cool freebie for Neil Marshall's DOOMSDAY!!! -- Ain't It Cool News: The best in movie, TV, DVD, and comic book news.</title>
    <dc:date>2007-10-25T03:22:37+00:00</dc:date>
    <link>http://www.aintitcool.com/node/33481</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Wondering where Michael Gastner, Cosma Shalizi, and Mark Newman are provided attribution, since the image used in the poster and trailer for the film was lifted straight from their Creative Commons by-attribution paper.
]]></description>
<dc:subject>cartogram images movies marketing demographics irony design copyright complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:6ee8f2cc7e7e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:cartogram"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:images"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:movies"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:marketing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:demographics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:irony"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:copyright"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0709.0223">
    <title>[0709.0223] Brief encounter networks</title>
    <dc:date>2007-09-05T11:47:43+00:00</dc:date>
    <link>http://arxiv.org/abs/0709.0223</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>social-networks complex-systems networks p2p transient phenomena dynamics models data-analysis visualization epidemiology</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:78e7297ab5ae/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:p2p"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:transient"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:phenomena"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:models"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:data-analysis"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:visualization"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:epidemiology"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.complexification.net/gallery/">
    <title>Complexification | Gallery of Computation</title>
    <dc:date>2007-08-19T01:46:12+00:00</dc:date>
    <link>http://www.complexification.net/gallery/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[I've blogged it, but it warrants bookmarking too.
]]></description>
<dc:subject>via:arthegall Processing generative-art gallery artist dynamics art interactive mathematics complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:380c4897ca7d/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:via:arthegall"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:Processing"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:generative-art"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:gallery"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:artist"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:dynamics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:art"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:interactive"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:mathematics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.citeulike.org/user/mattjb">
    <title>CiteULike: Matthew (mattjb)'s library</title>
    <dc:date>2007-07-15T11:44:50+00:00</dc:date>
    <link>http://www.citeulike.org/user/mattjb</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Matthew Berryman is citing some of what we should see.
]]></description>
<dc:subject>bibliography citation complex-systems collaboration CiteULike science reading social-networks</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:ab6c88b108c2/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:bibliography"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:citation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:collaboration"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:CiteULike"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-networks"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://blog.jonudell.net/2007/06/13/airplanes-cars-sticks-and-stones-brian-beckman-on-the-physics-of-simulation/">
    <title>Airplanes, cars, sticks and stones: Brian Beckman on the physics of simulation « Jon Udell</title>
    <dc:date>2007-06-18T13:36:17+00:00</dc:date>
    <link>http://blog.jonudell.net/2007/06/13/airplanes-cars-sticks-and-stones-brian-beckman-on-the-physics-of-simulation/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["We’ve heard it before, we’ll hear it again: a network of many simple parts trumps one big complex monolith. It’s a story that keeps on surprising us, but probably shouldn’t."
]]></description>
<dc:subject>algorithms simulation complex-systems physics games design science</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:1daf074f9400/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:algorithms"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:simulation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:games"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:design"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:science"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arstechnica.com/news.ars/post/20070615-inability-to-meet-grand-challenges-of-physics-likely-to-hurt-us-competitiveness.html">
    <title>Inability to meet &quot;grand challenges&quot; of physics likely to hurt US competitiveness</title>
    <dc:date>2007-06-17T14:10:08+00:00</dc:date>
    <link>http://arstechnica.com/news.ars/post/20070615-inability-to-meet-grand-challenges-of-physics-likely-to-hurt-us-competitiveness.html</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>government science funding research engineering challenge NSF National-Science-Foundation USA competitiveness grants innovation physics materials-science condensed-matter complex-systems</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:3b9ae0ea7545/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:government"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:funding"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:engineering"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:challenge"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:NSF"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:National-Science-Foundation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:USA"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:competitiveness"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:grants"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:innovation"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:materials-science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:condensed-matter"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.nd.edu/~netsci/index.html">
    <title>NetSci 07 | International Workshop and Conference on Network Science</title>
    <dc:date>2007-05-30T19:13:22+00:00</dc:date>
    <link>http://www.nd.edu/~netsci/index.html</link>
    <dc:creator>Vaguery</dc:creator><dc:subject>social-networks networks graphs academic conferences meeting complex-systems discrete-mathematics graph-theory</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:8460147bf18e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:social-networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:networks"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:graphs"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:academic"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:conferences"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:meeting"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:complex-systems"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:discrete-mathematics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:graph-theory"/>
</rdf:Bag></taxo:topics>
</item>
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