F. Figueiredo, B. Ribeiro, J. Almeida, and C. Faloutsos. International Conference on World Wide Web, page 695--706. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2016)
T. Kurashima, T. Iwata, G. Irie, and K. Fujimura. International Conference on Information and Knowledge Management (CIKM), page 579--588. New York, NY, USA, ACM, (2010)
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)