5954 search results - page 240 / 1191 » Querying Bi-level Information |
173
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KDD
2008
ACM
16 years 7 months ago
2008
ACM
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
207
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
164
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ITCC
2003
IEEE
15 years 12 months ago
2003
IEEE
We examine whether the use of query operators changes the documents retrieved by three popular Web search engines. One hundred queries containing query operators were selected fro...
191
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ER
2003
Springer
15 years 12 months ago
2003
Springer
XML is a widespread W3C standard used by several kinds of applications for data representation and exchange over the web. In the context of a system that provides semantic integrat...
182
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UML
2001
Springer
15 years 11 months ago
2001
Springer
UML is the de-facto standard language for Object-Oriented analysis and design of information systems. Persistent storage and extraction of data in such systems is supported by dat...