3891 search results - page 174 / 779 » Query Models |
142
Voted
CLEF
2009
Springer
15 years 7 months ago
2009
Springer
This report outlines our participation in CLEF-IP's 2009 prior art search task. In the task's initial year our focus lay on the automatic generation of effective queries...
192
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WWW
2011
ACM
15 years 1 months ago
2011
ACM
Ambiguous queries constitute a significant fraction of search instances and pose real challenges to web search engines. With current approaches the top results for these queries ...
158
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SIGIR
2009
ACM
16 years 19 days ago
2009
ACM
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from...
155
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
Ranking is an important property that needs to be fully supported by current relational query engines. Recently, several rank-join query operators have been proposed based on rank...
190
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SIAMCOMP
2012
13 years 8 months ago
2012
Let S be a set of n intervals in R, and let (S, +) be any commutative semigroup. We assign a weight ω(s) ∈ S to each interval in S. For a point x ∈ R, let S(x) ⊆ S be the se...