2217 search results - page 304 / 444 » Rank-aware Query Optimization |
159
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AAAI
2007
15 years 8 months ago
2007
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large a...
157
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ADBIS
2010
Springer
15 years 6 months ago
2010
Springer
Abstract. The last years there is an increasing interest for query processing techniques that take into consideration the dominance relationship between objects to select the most ...
169
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CIKM
2009
Springer
15 years 9 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
164
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SERVICES
2008
15 years 7 months ago
2008
Distributed stream query services must simultaneously process a large number of complex, continuous queries with stringent performance requirements while utilizing distributed pro...
132
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VLDB
1999
ACM
15 years 10 months ago
1999
ACM
This paper aims to improve the accuracy of query result-size estimations in query optimizers by leveraging the dynamic feedback obtained from observations on the executed query wo...