2228 search results - page 184 / 446 » A System for Semantic Query Optimization |
222
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SIGMOD
2009
ACM
16 years 3 months ago
2009
ACM
Composite (or Complex) event processing (CEP) systems search sequences of incoming events for occurrences of userspecified event patterns. Recently, they have gained more attentio...
114
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ICDE
2010
IEEE
15 years 10 months ago
2010
IEEE
— Information extraction systems are traditionally implemented as a pipeline of special-purpose processing modules. A major drawback of such an approach is that whenever a new ex...
150
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PVLDB
2010
15 years 1 months ago
2010
Users of text search engines are increasingly wary that their activities may disclose confidential information about their business or personal profiles. It would be desirable f...
121
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APWEB
2006
Springer
15 years 7 months ago
2006
Springer
In the Semantic Web, RDF (Resource Description Framework) and RDF Schema are commonly used to describe metadata. There are a great many RDF data in current web, therefore, efficien...
198
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ICDE
2005
IEEE
16 years 4 months ago
2005
IEEE
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...