1Ming Zhang,Ruihua Song,Chuan Lin,et al.Expansion-Based Techologies in Finding Relevant and New information[A].TREC 2002[C].
2Rocchio,J.J.Relevant Feedback in Information Retrieval[M],Chapter 14,pages 313 -323.PrenticeHall Inc.1971.
3Maron M.E.,Kuhns J.L.On Relevance,Probabilistic Indexing and Information Retrieval[J].Journal of the Association for Computer Machinery.1960,7:216 -244.
4Rocchio J.J.Relevance Feedback in Information Retrieval.In Salton G.(Ed.),The SMART Retrieval System[M].1971.Engle-wood CIifs,Prentice-Hall,Inc.313 -323.
5S E Robertson,S Walker,M Beaulieu.Okapi at TREC-7:automatic ad hoc,filtering,VLC and interactive[A].TREC-7[C].
6S E Robertson and S Walker.Okapi/Keenbow at TREC-8.TREC-8[C].
7S E Robertson and K.Sparck Jones.Relevance Weighting of Searching Terms[J].Journal of the American Society for Information Sciences.1976,27 (3):129-146.
8S E Robertson.On term selection for query expansion.Journal of Documentation[J].1990,46:359-364.
9J.M.Ponte and W.B.Croft.A Language modeling approach to IR[A].In:proceedings of the ACM SIGIR Conference[C].1998,275-281.
10C.Zhai and J.Lafferty.A study of smoothing methods for language models applied to ad hoc information retrieval[A].In:proceedings of the ACM-SIGIR 2001[C].334-342.
