6650 search results - page 357 / 1330 » Mutating database queries |
147
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EDBT
2006
ACM
16 years 5 months ago
2006
ACM
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
133
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DASFAA
2009
IEEE
15 years 11 months ago
2009
IEEE
Existing xml query pattern-based caching strategies focus on extracting the set of frequently issued query pattern trees (qpt) based on the support of the qpts in the history. Thes...
176
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EDBT
2009
ACM
15 years 11 months ago
2009
ACM
Twig queries have been extensively studied as a major fragment of XPATH queries to query XML data. In this paper, we study PXMLRANK query, (Q, k), which is to rank top-k probabili...
175
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DASFAA
2005
IEEE
15 years 10 months ago
2005
IEEE
Recently, several approaches that mine frequent XML query patterns and cache their results have been proposed to improve query response time. However, frequent XML query patterns m...
122
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IDEAS
2005
IEEE
15 years 10 months ago
2005
IEEE
The modern XML query language called XQuery includes advanced facilities both to query and to transform XML data. An XQuery query optimizer should be able to optimize any query. F...