Greg Linden reviews a paper by MSN scientists that shows some interesting things about search personalization. When "click entropy" is high (people are exhibiting a lot of different behaviors in response to the set of results, as opposed to clicking on the first one because it's the best), personalization is warranted and helpful. Labels: search personalization
Another finding is that fine-grained, click-based approaches to personalization are better than profile-based approaches.
This must have been what I was getting at when I was underwhelmed by Google's beta of so-called personalized search a couple of years ago (it was based on a very simple profile approach), but then of course I rambled off on another tangent. Looks like MSN and Linden have captured the essence of the problem.
Posted by Andrew Goodman
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