Looks like researchers are now using new techniques to out groups of fake reviews on sites like Yelp. This is an interesting follow-up to the story Eater ran last month in regards to new shady companies paying real people to write fake reviews to help boost scores on Yelp, as well as other user review sites. The new algorithm looks at stuff like how often certain accounts review the same places, as that seems to be a red flag for phoneys. [~EN~]
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