a) Data Set 1: Containing all top-free-300 leaderboard information in Appstore from 2010-02-08 to 2012-09-17
b) Data Set 2: Containing all top-paid-300 leaderboard information in Appstore from 2010-02-08 to 2012-09-17
c) Data Set 3: Containing all rating and review information for Apps in the above two data sets.
Reference: (If you use these data sets for research purpose, please cite the following papers)
Hengshu Zhu, Hui Xiong, Yong Ge, and Enhong Chen, Discovery of Ranking Fraud for Mobile Apps, IEEE Transactions on Knowledge and Data Engineering (IEEE TKDE), 27(1):74-87, 2015. [PDF]
Hengshu Zhu, Chuanren Liu, Yong Ge, Hui Xiong, Enhong Chen, Popularity Modeling for Mobile Apps: A Sequential Approach, IEEE Transactions on Cybernetics (IEEE TC), PP(99):1-12, 2014. [PDF]