588 search results - page 72 / 118 » Positive higher-order queries |
146
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ICDE
2011
IEEE
14 years 7 months ago
2011
IEEE
Abstract— In recent years, XML-based Publish-Subscribe Systems have become popular due to the increased demand of timely event-notification. Users (or subscribers) pose complex ...
248
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ICDE
2005
IEEE
16 years 5 months ago
2005
IEEE
Moving objects databases managing spatial objects with continuously changing position and extent over time have recently found large interest in the database community. Queries ab...
155
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WWW
2007
ACM
16 years 5 months ago
2007
ACM
Schema statements in OWL are interpreted quite differently from analogous statements in relational databases. If these statements are meant to be interpreted as integrity constrai...
167
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PODS
2006
ACM
16 years 4 months ago
2006
ACM
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
105
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EDBT
2006
ACM
16 years 4 months ago
2006
ACM
We study the expressiveness and performance of full-text search languages. Our main motivation is to provide a formal basis for comparing such languages and to develop a model for...