9683 search results - page 157 / 1937 » Query performance prediction |
155
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IR
2010
14 years 11 months ago
2010
The retrieval of sentences that are relevant to a given information need is a challenging passage retrieval task. In this context, the well-known vocabulary mismatch problem arises...
BMCBI
2008
15 years 2 months ago
2008
Background: Leishmania and other members of the Trypanosomatidae family diverged early on in eukaryotic evolution and consequently display unique cellular properties. Their appare...
123
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IDEAS
2007
IEEE
15 years 8 months ago
2007
IEEE
Constraint-based database caching aims at correctly answering SQL query predicates from a local cache database by exploiting constraints that have previously been used in selectin...
102
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ADC
2004
Springer
15 years 7 months ago
2004
Springer
Web search engines crawl the web to fetch the data that they index. In this paper we re-examine that need, and evaluate the network costs associated with data acquisition, and alt...
118
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WWW
2006
ACM
16 years 3 months ago
2006
ACM
We introduce the notion of query substitution, that is, generating a new query to replace a user's original search query. Our technique uses modifications based on typical su...