AAAI Publications, Workshops at the Twenty-Sixth AAAI Conference on Artificial Intelligence

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Detecting Deceptive Opinion Spam Using Human Computation
Christopher Glenn Harris

Last modified: 2012-07-15


Websites that encourage consumers to research, rate, and review products online have become an increasingly important factor in purchase decisions. This increased importance has been accompanied by a growth in deceptive opinion spam - fraudulent reviews written with the intent to sound authentic and mislead consumers. In this study, we pool deceptive reviews solicited through crowdsourcing with actual reviews obtained from product review websites. We then explore several human- and machine-based assessment methods to spot deceptive opinion spam in our pooled review set. We find that the combination of human-based assessment methods with easily-obtained statistical information generated from the review text outperforms detection methods using human assessors alone.


spam detection; human computation; crowdsourcing; product reviews

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