938 search results - page 145 / 188 » Space-Efficient Algorithms for Document Retrieval |
110
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SIGIR
2005
ACM
15 years 5 months ago
2005
ACM
Latent semantic indexing (LSI) is a well-known unsupervised approach for dimensionality reduction in information retrieval. However if the output information (i.e. category labels...
122
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GECCO
2005
Springer
15 years 5 months ago
2005
Springer
Several ways of using singular value decomposition (SVD), a linear algebra technique typically used for information retrieval, to decompose problems into subproblems are investiga...
133
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SIGIR
2011
ACM
14 years 2 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
WWW
2005
ACM
16 years 14 days ago
2005
ACM
This paper is concerned with the problem of definition search. Specifically, given a term, we are to retrieve definitional excerpts of the term and rank the extracted excerpts acc...
108
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WWW
2003
ACM
16 years 14 days ago
2003
ACM
The web contains a wealth of product reviews, but sifting through them is a daunting task. Ideally, an opinion mining tool would process a set of search results for a given item, ...