720 search results - page 84 / 144 » Positional language models for information retrieval |
175
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CIKM
2011
Springer
14 years 5 months ago
2011
Springer
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
167
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SIGIR
2003
ACM
15 years 11 months ago
2003
ACM
Thesaurus has been widely used in many applications, including information retrieval, natural language processing, and question answering. In this paper, we propose a novel approa...
147
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SIGIR
2010
ACM
15 years 6 months ago
2010
ACM
Inferring the score distribution of relevant and non-relevant documents is an essential task for many IR applications (e.g. information filtering, recall-oriented IR, meta-search,...
158
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SIGIR
2012
ACM
13 years 8 months ago
2012
ACM
We present a novel interpretation of Clarity [5], a widely used query performance predictor. While Clarity is commonly described as a measure of the “distance” between the lan...
154
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MM
2005
ACM
15 years 11 months ago
2005
ACM
In this paper we unify two supposedly distinct tasks in multimedia retrieval. One task involves answering queries with a few examples. The other involves learning models for seman...