Apple engineer Erik Goldman has published a blog post giving selected details on how Apple’s iTunes Genius recommendation tech works. Naturally, it’s mostly over our heads – apparently you should “look at information retrieval algorithms, especially those that leverage the vector-space model” to see what Apple is up to – while “latent-factor algorithms” are also important. Goldman also advises anyone working on recommendations to read the papers from the recent Netflix Prize contest. iTunes Genius could be about to get a bump in its profile, incidentally: if Apple does announce some form of cloud/streaming iTunes on Monday as rumoured, Genius will surely be part of it. Source: Technology Review

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