Hello! The Dataset in this paper is available for research purpose upon request, please contact me at wenlin.yao.cs@gmail.com

Please also cite:
Amir Fayazi, Kyumin Lee, James Caverlee, and Anna Squicciarini. 2015. Uncovering crowdsourced manipulation of online reviews. 
In Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval.
ACM, pages 233-242.