735 search results - page 44 / 147 » TREC: Experiment and evaluation in information retrieval |
108
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CIKM
2004
Springer
15 years 6 months ago
2004
Springer
Query expansion is a well-known technique that has been shown to improve average retrieval performance. This technique has not been used in many operational systems because of the...
WISE
2002
Springer
15 years 6 months ago
2002
Springer
The common paradigm of searching and retrieving information on the Web is based on keyword-based search using one or more search engines, and then browsing through the large numbe...
122
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SIGIR
2009
ACM
15 years 7 months ago
2009
ACM
Although many variants of language models have been proposed for information retrieval, there are two related retrieval heuristics remaining “external” to the language modelin...
ECIR
2003
Springer
15 years 2 months ago
2003
Springer
The size of a document archive is a very important parameter for resource selection in distributed information retrieval systems. In this paper, we present a method for automatical...
102
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SIGIR
2009
ACM
15 years 7 months ago
2009
ACM
Most retrieval models estimate the relevance of each document to a query and rank the documents accordingly. However, such an approach ignores the uncertainty associated with the ...