丹羽さんの論文をサーベイしてみて、はてなブックマークのデータを使っていて、「なるほど。」と思った。で、ちょっと調査。 http://b.hatena.ne.jp/entrylist?sort=count&url=http://で、ブックマーク数の多い順の(人間向けの)頁をみるとかできるのはわか…
[Followup to this] Ok, so here's where I tell all about how I (now we) got to be tied for third place on the netflix prize. And I don't mean a sordid tale of computing in the jungle, but rather the actual math and methods. So yes, after reading this post, you too should be able to rank in the top ten or so. Ur... yesterday's top ten anyway. My first disclaimer is that our last submission which tie
By Ilya Grigorik on January 15, 2007 One day, a bunch of friends, who happened to be big Family Guy fans, decided to put together a site to rank and share their thoughts on the show. Soon thereafter they had a Rails site up and running, and all was well, and other fans joined in hordes. A web 2.0 success! Then one day they realized that they could no longer track everyone's ratings, their user-bas
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