588 search results - page 49 / 118 » Positive higher-order queries |
127
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CIKM
2009
Springer
15 years 8 months ago
2009
Springer
XML query languages use directional path expressions to locate data in an XML data collection. They are tightly coupled to the structure of a data collection, and can fail when ev...
102
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ICIAR
2007
Springer
15 years 8 months ago
2007
Springer
This paper introduces a composite relevance feedback approach for image retrieval using transaction-based and SVM-based learning. A transaction repository is dynamically constructe...
114
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VLDB
2001
ACM
15 years 6 months ago
2001
ACM
In this paper we focus on the following problem in information management: given a large collection of recorded information and some knowledge of the process that is generating th...
103
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CLEF
2008
Springer
15 years 3 months ago
2008
Springer
In this paper, we assess the impact of using thesaurus-based query expansion methods, at the Information Retrieval (IR) stage of a Question Answering (QA) system. We focus on expan...
136
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COMAD
2008
15 years 3 months ago
2008
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...