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Personalized Yelp ratings

June 24, 2009

I had a great conversation last night which at one point verged into the pros and cons of various ratings systems. In particular, we discussed the "star+comment" system used by Yelp, in which between 1 and 5 stars can be assigned in addition to a text comment of arbitrary length. Yelp does some clever things […]

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Voters may prefer candidates with similar facial features

April 28, 2009

There has been extensive psychological research into the fact that people are more receptive to others who are perceived as being similar. A new study from Stanford by Jeremy Bailenson, Shanto Iyengar, Nick Yee and Nathan Collins has applied this finding to the political sphere (pdf link). The research, published with the telling title "Facial […]

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