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<Writing a Digg-Style Popularity Algorithm ⁄ >




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Not so long ago I was tasked with creating a web site similar to Digg - users voted on records in the database, and those deemed "popular" were promoted to the front page. But how exactly does such an algorithm work? Let's take a look under the hood...

Before we begin, a quick disclaimer: These are my own thoughts on such an algorithm, from scratch. I don't know how Digg, Reddit and other such sites rank popular items, so this may be a quite different.



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