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  • × author_ss:"Croft, W.B."
  1. Liu, X.; Croft, W.B.: Cluster-based retrieval using language models (2004) 0.04 
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    Year
    2004
  2. Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987) 0.03 
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    Source
    Annual review of information science and technology. 22(1987), S.109-145
  3. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.02 
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    Date
    27. 2.1999 20:55:22
  4. Liu, X.; Croft, W.B.: Statistical language modeling for information retrieval (2004) 0.02 
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    Year
    2004
  5. Xiaoyan Li, X.; Croft, W.B.: ¬An information-pattern-based approach to novelty detection (2008) 0.02 
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    Abstract
    In this paper, a new novelty detection approach based on the identification of sentence level information patterns is proposed. First, "novelty" is redefined based on the proposed information patterns, and several different types of information patterns are given corresponding to different types of users' information needs. Second, a thorough analysis of sentence level information patterns is elaborated using data from the TREC novelty tracks, including sentence lengths, named entities (NEs), and sentence level opinion patterns. Finally, a unified information-pattern-based approach to novelty detection (ip-BAND) is presented for both specific NE topics and more general topics. Experiments on novelty detection on data from the TREC 2002, 2003 and 2004 novelty tracks show that the proposed approach significantly improves the performance of novelty detection in terms of precision at top ranks. Future research directions are suggested.

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