It is well-known that many online reviews are not written by genuine users of products, but by spammers who write fake reviews to promote or demote some target products. Although some existing works have been done to detect fake reviews and individual spammers, to our knowledge, no work has been done on detecting spammer groups. This paper focuses on this task and proposes an effective technique to detect such groups. Categories and Subject Descriptors H.2.8 [Database Applications]: Data Mining General Terms Algorithms, Experimentation Keywords Review spam, spammer group detection, adversarial data mining.
Arjun Mukherjee, Bing Liu, Junhui Wang, Natalie S.