J. Qiu, Y. Dong, H. Ma, J. Li, K. Wang, and J. Tang. Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining - WSDM \textquotesingle18, ACM Press, (2018)
K. Zhao, Y. Li, Z. Shuai, and C. Yang. Proceedings of the 24th ACM SIGKDD International Conference on Knowledge Discovery &\#38; Data Mining, page 1031--1039. New York, NY, USA, ACM, (2018)
S. Feng, X. Li, Y. Zeng, G. Cong, Y. Chee, and Q. Yuan. Proceedings of the 24th International Conference on Artificial Intelligence, page 2069--2075. AAAI Press, (2015)