469 search results - page 39 / 94 » Cluster-based query expansion |
134
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ECIR
2010
Springer
15 years 5 months ago
2010
Springer
Query performance predictors are commonly evaluated by reporting correlation coefficients to denote how well the methods perform at predicting the retrieval performance of a set of...
128
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ACL
2006
15 years 5 months ago
2006
We report on the development of a new automatic feedback model to improve information retrieval in digital libraries. Our hypothesis is that some particular sentences, selected ba...
142
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EJC
2008
15 years 4 months ago
2008
Abstract. Classes of graphs with bounded expansion are a generalization of both proper minor closed classes and degree bounded classes. Such classes are based on a new invariant, t...
150
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WSDM
2009
ACM
15 years 11 months ago
2009
ACM
A lot of the world’s knowledge is stored in books, which, as a result of recent mass-digitisation efforts, are increasingly available online. Search engines, such as Google Book...
130
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VLDB
2005
ACM
15 years 10 months ago
2005
ACM
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...