X. Liu, and W. Croft. Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, page 186--193. New York, NY, USA, ACM, (2004)
X. Liu, and W. Croft. Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, page 186--193. New York, NY, USA, ACM, (2004)
J. Leskovec, J. Kleinberg, and C. Faloutsos. KDD '05: Proceedings of the eleventh ACM SIGKDD international conference on Knowledge discovery in data mining, page 177--187. New York, NY, USA, ACM, (2005)