Bin Wang Hongbo Xu Zhifeng Yang Yue Liu Xueqi Cheng Dongbo Bu Shuo Bai TREC-10 Experiments at CAS-ICT: Filtering, Web and QA. 2001 TREC http://trec.nist.gov/pubs/trec10/papers/CASICT.pdf db/conf/trec/trec2001.html#WangXYLCBB01