https://pinboard.in/u:guardiantech/public/ recent bookmarks from guardiantech 2014-05-18T21:29:47+00:00 https://medium.com/the-physics-arxiv-blog/2c567adbf7fc guardiantechThe best systems can beat human performance in ideal conditions. But their performance drops dramatically as conditions get worse. So computer scientists would dearly love to develop an algorithm that can take the crown in the most challenging conditions too. Today, Chaochao Lu and Xiaoou Tang at the Chinese University of Hong Kong say they’ve done just that. These guys have developed a face recognition algorithm called GaussianFace that outperforms humans for the first time. The new system could finally make human-level face verification available in applications ranging from smart phone and computer game log-ons to security and passport control. Impressive.]]> algorithms programming https://pinboard.in/ https://pinboard.in/u:guardiantech/b:124a2e31f384/ 2012-05-08T19:54:45+00:00 http://google-opensource.blogspot.co.uk/2012/05/introducing-ceres-solver-nonlinear.html guardiantech algorithms api https://pinboard.in/ https://pinboard.in/u:guardiantech/b:d433402b85c8/ 2012-02-23T09:27:40+00:00 http://www.good.is/post/at-amazon-buggy-bots-confused-markets-and-books-collide guardiantech[Carlos] Bueno raised money with Kickstarter to publish his book through Amazon’s self-publishing service, making his book available in a variety of electronic formats and also as a print-on-demand book—each time a physical copy is purchased, it’s printed specifically for that order. Bueno set the price of the book at $14.95 and has sold about 1,000 copies. But in the last few weeks, Bueno has seen his book become the center of a strange phenomenon on Amazon: the bot market. A reseller in Amazon’s used books section was offering the book for $55—even though the book was available for forty dollars less on the same website.  Then another one appeared, selling for $14.94—lower than the retail price. Another was for sale for $12.50. The only way these resellers could profit would be through excessive shipping and handling charges.  Even stranger, these resellers are offering “Very Good” or “Like New” used copies of a book that is printed on demand—that is, they’re offering used copies of books that probably don’t even exist. Imagine if this happened in financial markets. Oh.]]> amazon algorithms pricing https://pinboard.in/ https://pinboard.in/u:guardiantech/b:d2e8d302b809/ 2012-02-17T22:08:51+00:00 http://www.ted.com/talks/eli_pariser_beware_online_filter_bubbles.html guardiantechAs web companies strive to tailor their services (including news and search results) to our personal tastes, there's a dangerous unintended consequence: We get trapped in a "filter bubble" and don't get exposed to information that could challenge or broaden our worldview. Eli Pariser argues powerfully that this will ultimately prove to be bad for us and bad for democracy. The best use you'll make of nine minutes today. (Thanks @ocoonassa, from the discussion about Google's Dafari hacking.)]]> charlesarthur facebook google search algorithms https://pinboard.in/ https://pinboard.in/u:guardiantech/b:86c6a079d209/ 2011-07-03T17:27:32+00:00 http://blogs.hbr.org/cs/2011/05/seven_things_human_editors_do.html guardiantech charlesarthur technology journalism data media algorithms https://pinboard.in/u:guardiantech/b:13d2faa70838/ 2011-05-31T12:20:49+00:00 http://www.geekosystem.com/depixelating-pixel-art-algorithm/ guardiantech
Completely ruins the look of Space Invaders, though. Those things are *meant* to look pixellated - not like some weird crab with attitude problems.]]> charlesarthur compression algorithms pixel games https://pinboard.in/u:guardiantech/b:52234b6672a4/ 2011-04-13T19:25:49+00:00 http://blog.greenlightsearch.com/greenlights_search_blog/2011/04/google-panda-part-2-winners-losers.html guardiantech charlesarthur google algorithms https://pinboard.in/u:guardiantech/b:61fe876c0e5c/