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    <description>recent bookmarks from Vaguery</description>
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  </channel><item rdf:about="https://arxiv.org/abs/2305.02947">
    <title>[2305.02947] A study on the composition of elementary cellular automata</title>
    <dc:date>2024-04-03T02:16:16+00:00</dc:date>
    <link>https://arxiv.org/abs/2305.02947</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Elementary cellular automata (ECA) are one-dimensional discrete models of computation with a small memory set that have gained significant interest since the pioneer work of Stephen Wolfram, who studied them as time-discrete dynamical systems. Each of the 256 ECA is labeled as rule X, where X is an integer between 0 and 255. An important property, that is usually overlooked in computational studies, is that the composition of any two one-dimensional cellular automata is again a one-dimensional cellular automaton. In this chapter, we begin a systematic study of the composition of ECA. Intuitively speaking, we shall consider that rule X has low complexity if the compositions X∘Y and Y∘X have small minimal memory sets, for many rules Y. Hence, we propose a new classification of ECA based on the compositions among them. We also describe all semigroups of ECA (i.e., composition-closed sets of ECA) and analyze their basic structure from the perspective of semigroup theory. In particular, we determine that the largest semigroups of ECA have 9 elements, and have a subsemigroup of order 8 that is -trivial, property which has been recently used to define random walks and Markov chains over semigroups.]]></description>
<dc:subject>cellular-automata composition representation rather-interesting group-theory to-visualize consider:DSL-for-CA-instead-of-fucking-Wolfram-numbers</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:64fa36cb950b/</dc:identifier>
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<item rdf:about="https://arxiv.org/abs/1505.02547">
    <title>[1505.02547] The $plambda n$ fractal decomposition: Nontrivial partitions of conserved physical quantities</title>
    <dc:date>2017-04-22T10:57:52+00:00</dc:date>
    <link>https://arxiv.org/abs/1505.02547</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[A mathematical method for constructing fractal curves and surfaces, termed the pλn fractal decomposition, is presented. It allows any function to be split into a finite set of fractal discontinuous functions whose sum is equal everywhere to the original function. Thus, the method is specially suited for constructing families of fractal objects arising from a conserved physical quantity, the decomposition yielding an exact partition of the quantity in question. Most prominent classes of examples are provided by Hamiltonians and partition functions of statistical ensembles: By using this method, any such function can be decomposed in the ordinary sum of a specified number of terms (generally fractal functions), the decomposition being both exact and valid everywhere on the domain of the function.]]></description>
<dc:subject>representation composition rather-interesting to-write-about nudge-targets consider:looking-to-see consider:feature-discovery</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:48e5b536f8f4/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1204.3216">
    <title>[1204.3216] Towards A Categorical Approach of Transformational Music Theory</title>
    <dc:date>2014-03-09T10:41:34+00:00</dc:date>
    <link>http://arxiv.org/abs/1204.3216</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[Transformational music theory mainly deals with group and group actions on sets, which are usually constituted by chords. For example, neo-Riemannian theory uses the dihedral group D24 to study transformations between major and minor triads, the building blocks of classical and romantic harmony. Since the developments of neo-Riemannian theory, many developments and generalizations have been proposed, based on other sets of chords, other groups, etc. However music theory also face problems for example when defining transformations between chords of different cardinalities, or for transformations that are not necessarily invertible. This paper introduces a categorical construction of musical transformations based on category extensions using groupoids. This can be seen as a generalization of a previous work which aimed at building generalized neo-Riemannian groups of transformations based on group extensions. The categorical extension construction allows the definition of partial transformations between different set-classes. Moreover, it can be shown that the typical wreath products groups of transformations can be recovered from the category extensions by "packaging" operators and considering their composition.
]]></description>
<dc:subject>group-theory esoterica music composition models-and-modes rather-odd interesting</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Vaguery/b:e95e2910ec20/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1109.5229">
    <title>[1109.5229] Distributed Algorithms for Optimal Power Flow Problem</title>
    <dc:date>2011-12-16T12:55:14+00:00</dc:date>
    <link>http://arxiv.org/abs/1109.5229</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Optimal power flow (OPF) is an important problem for power generation and it is in general non-convex. With the employment of renewable energy, it will be desirable if OPF can be solved very efficiently so its solution can be used in real time. With some special network structure, e.g. trees, the problem has been shown to have a zero duality gap and the convex dual problem yields the optimal solution. In this paper, we propose a primal and a dual algorithm to coordinate the smaller subproblems decomposed from the convexified OPF. We can arrange the subproblems to be solved sequentially and cumulatively in a central node or solved in parallel in distributed nodes. We test the algorithms on IEEE radial distribution test feeders, some random tree-structured networks, and the IEEE transmission system benchmarks. Simulation results show that the computation time can be improved dramatically with our algorithms over the centralized approach of solving the problem without decomposition, especially in tree-structured problems. The computation time grows linearly with the problem size with the cumulative approach while the distributed one can have size-independent computation time."]]></description>
<dc:subject>operations-research algorithms network-theory infrastructure composition nudge-targets</dc:subject>
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<item rdf:about="http://www.miller-mccune.com/culture-society/triumph-of-the-cyborg-composer-8507/">
    <title>Triumph of the Cyborg Composer | Miller-McCune Online</title>
    <dc:date>2010-09-05T12:44:06+00:00</dc:date>
    <link>http://www.miller-mccune.com/culture-society/triumph-of-the-cyborg-composer-8507/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[“Nobody’s original,” Cope says. “We are what we eat, and in music, we are what we hear. What we do is look through history and listen to music. Everybody copies from everybody. The skill is in how large a fragment you choose to copy and how elegantly you can put them together.”
]]></description>
<dc:subject>via:tsuomela creativity cultural-assumptions generative-art music composition nudge engineering-design aesthetic-norms</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:195f2d629e85/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1006.4948">
    <title>[1006.4948] Automatic Music Composition using Answer Set Programming</title>
    <dc:date>2010-06-29T12:00:40+00:00</dc:date>
    <link>http://arxiv.org/abs/1006.4948</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["Music composition used to be a pen and paper activity. These these days music is often composed with the aid of computer software, even to the point where the computer compose parts of the score autonomously. The composition of most styles of music is governed by rules. We show that by approaching the automation, analysis and verification of composition as a knowledge representation task and formalising these rules in a suitable logical language, powerful and expressive intelligent composition tools can be easily built. …"
]]></description>
<dc:subject>nudge-targets design-automation inspirational-computing artificial-collaboration music composition</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d7806807940c/</dc:identifier>
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<item rdf:about="http://supercollider.sourceforge.net/">
    <title>SuperCollider » About</title>
    <dc:date>2009-11-22T17:34:19+00:00</dc:date>
    <link>http://supercollider.sourceforge.net/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["SuperCollider is an environment and programming language for real time audio synthesis and algorithmic composition. It provides an interpreted object-oriented language which functions as a network client to a state of the art, realtime sound synthesis server.

SuperCollider was written by James McCartney over a period of many years, and is now an open source (GPL) project maintained and developed by various people. It is used by musicians, scientists, and artists working with sound. For some background, see SuperCollider described by Wikipedia."
]]></description>
<dc:subject>music generative-art algorithmic-art language opensource synthesis audio composition design</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:d649fa96f6c8/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Vaguery/t:music"/>
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<item rdf:about="http://www.flickr.com/groups/generatorx/discuss/72157611317417176/">
    <title>Flickr: Discussing Mozart was a generative artist in Generator.x: Generative strategies in art &amp; design</title>
    <dc:date>2008-12-16T13:17:22+00:00</dc:date>
    <link>http://www.flickr.com/groups/generatorx/discuss/72157611317417176/</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA["In 1787, Mozart wrote the measures and instructions for a musical composition dice game. The idea is to cut and paste pre-written measures of music together to create a Minuet.

This site is an implementation of such a game. The music and table of rules for this game appear to have been published anonymously in 1787, and interestingly, the table of rules for this Minuet is identical to Mozart's. However, it is not clear who the composer of these measures is."
]]></description>
<dc:subject>music generative-art Mozart algorithmic-art nanohistory composition design-automation</dc:subject>
<dc:identifier>https://pinboard.in/u:Vaguery/b:676d1d5b92ee/</dc:identifier>
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<item rdf:about="http://salavon.com/FieldGuide/FieldGuide01.php">
    <title>Jason Salavon - Field Guide to Style &amp; Color</title>
    <dc:date>2007-11-16T12:47:47+00:00</dc:date>
    <link>http://salavon.com/FieldGuide/FieldGuide01.php</link>
    <dc:creator>Vaguery</dc:creator><description><![CDATA[IKEA 2007 catalog normalized
]]></description>
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    <title>words / myth / ampers &amp; virgule: Structure, content, and the principle of linguistic relativity</title>
    <dc:date>2007-02-20T01:26:40+00:00</dc:date>
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    <dc:creator>Vaguery</dc:creator><dc:subject>documents structure editing composition writing typography design XML hypertext</dc:subject>
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