Filters








6 Hits in 5.0 sec

Fast statistical parsing of noun phrases for document indexing

Chengxiang Zhai
1997 Proceedings of the fifth conference on Applied natural language processing -  
The effectiveness of using syntactic phrases provided by the parser to supplement single words for indexing is evaluated with a 250 megabytes document collection.  ...  This paper proposes a new probabilistic model for noun phrase parsing, and reports on the application of such a parsing technique to enhance document indexing.  ...  Evans for his advising and supporting of this work. Thanks are also due to John Lafferty, Nata~a Milid-Frayling, Xiang Tong, and two anonymous reviewers for their useful comments.  ... 
doi:10.3115/974557.974603 dblp:conf/anlp/Zhai97 fatcat:jhjkvn3j5rcthbzvtl7oj4n4w4

Fast Statistical Parsing of Noun Phrases for Document Indexing [article]

Chengxiang Zhai
1997 arXiv   pre-print
The effectiveness of using syntactic phrases provided by the parser to supplement single words for indexing is evaluated with a 250 megabytes document collection.  ...  This paper proposes a new probabilistic model for noun phrase parsing, and reports on the application of such a parsing technique to enhance document indexing.  ...  Evans for his advising and supporting of this work. Thanks are also due to John Lafferty, Nataša Milić-Frayling, Xiang Tong, and two anonymous reviewers for their useful comments.  ... 
arXiv:cmp-lg/9702009v1 fatcat:7fgaozpdqfdctext7rcdvtyhzu

Phase-based information retrieval

A.T. Arampatzis, T. Tsoris, C.H.A. Koster, Th.P. van der Weide
1998 Information Processing & Management  
We suggest a representation of phrases suitable for indexing, and an architecture for such a retrieval system. Syntactical normalization is introduced to improve retrieval eectiveness.  ...  Guided by the failures and successes of other state-of-the-art approaches, as well as our own experience with the IRENA system, our approach is based on phrases and incorporates linguistic resources and  ...  The goal of the CLARIT TREC-5 NLP track 6 (Zhai et al., 1996) was to test two hypotheses: 1.  ... 
doi:10.1016/s0306-4573(98)00030-2 fatcat:xvp3dr56enh2hdz7lsa6lj6ti4

Further reflections on TREC

Karen Sparck Jones
2000 Information Processing & Management  
The paper focuses on the ad hoc retrieval task, with discussion of other test tracks as appropriate.  ...  The analysis of the tests is presented through a series of key questions about indexing models, document and query descriptions, search strategies, etc.  ...  Robertson and Donna Harman for their comments, and wish speci®cally to acknowledge the latter's scrupulous care in distinguishing her points as from a Referee, from a Fellow researcher or from a Defender of  ... 
doi:10.1016/s0306-4573(99)00044-8 fatcat:lqrad3oravfsxkzahlpj3afmea

Noun phrases in interactive query expansion and document ranking

Olga Vechtomova
2006 Information retrieval (Boston)  
A combined syntactico-statistical method was used for the selection of phrases for query expansion. Several statistical measures of phrase selection were evaluated.  ...  The paper presents a new method of phrase weighting, which addressed this problem, and its evaluation on the TREC dataset.  ...  The work reported in this paper is aimed at filling these gaps through a systematic evaluation of phrase-based methods on the TREC dataset.  ... 
doi:10.1007/s10791-006-6390-8 fatcat:pllm63nqhjfipmlu2yrcdi5bpe

Dialog navigator : A navigation system from vague questions to specific answers based on real-world text collections

Yoji Kiyota
Chapter 2 proposes several methods of matching user questions with texts, based on the NLP techniques.  ...  An experimental evaluation on testsets shows significant improvements of performance by our methods.  ...  Also, some participant at TREC-5 NLP Track [32] reported that query expansion improved performance of their systems.  ... 
doi:10.14989/doctor.k11209 fatcat:zww3uqbazbe7bko7jnwidrxsiu