2NII Test Collection for IR Systems (NTCIR 会议) : http://research. nii. ac. jp/ntcir/workshop/.
3Qian YueLiang,LIN ShouXun,Zhang YongDong, LIU Yang,LIU Hong and LIU Qun. An Introduction to Corpora Resources of 863 Program for Chinese Language Processing and Intelligent Human-Machine Interaction. In Proceedings of The 4th Workshop on Asian Language Resources (ALR-04), March 25,2004, Sanya City, Hainan Island, China.
4The Linguistic Data Consortium (LDC) 网站: http://www.ldc. upenn. edu.
5The Text REtrieval Conference (TREC 会议): http://tree.nist. gov/.