Y. Chen, H. Dong, and W. Wang. Proceedings of the 2018 International Conference on Data Science and Information Technology, page 138--143. New York, NY, USA, ACM, (2018)
W. Song, X. Ma, S. Cheung, H. Hu, Q. Yang, and J. Lu. Proceedings of the 2011 IEEE International Conference on Web Services, page 129--136. Washington, DC, USA, IEEE Computer Society, (2011)
G. Xue, H. Zeng, Z. Chen, Y. Yu, W. Ma, W. Xi, and W. Fan. CIKM '04: Proceedings of the thirteenth ACM international conference on Information and knowledge management, page 118--126. New York, NY, USA, ACM, (2004)
G. Feng, T. Liu, Y. Wang, Y. Bao, Z. Ma, X. Zhang, and W. Ma. SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, page 75--82. New York, NY, USA, ACM Press, (2006)