Publishers of person evaluations have come up with a variety of safeguards to prevent bogus write-ups. But we discovered them to be a combined bag. When Nitin Jindal and Bing Liu of the University of Illinois in Chicago analyzed 5.8 million user reviews of electronics, books, music, and DVDs on Amazon.com, for example, they noticed something unusual. A lot of them had been from "trusted reviewers" who had...
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Publishers of person evaluations have come up with a variety of safeguards to prevent bogus write-ups. But we discovered them to be a combined bag. When Nitin Jindal and Bing Liu of the University of Illinois in Chicago analyzed 5.8 million user reviews of electronics, books, music, and DVDs on Amazon.com, for example, they noticed something unusual. A lot of them had been from "trusted reviewers" who had...