2070 search results - page 278 / 414 » Querying Communities in Relational Databases |
147
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
Abstract. OWL is a recommended language for publishing and sharing ontologies on the Semantic Web. To manage the ontologies, several OWL data management systems have been proposed....
124
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IDEAS
2008
IEEE
15 years 11 months ago
2008
IEEE
In this paper we show the usefulness and feasibility of applying conventional SQL queries for analyzing a wide spectrum of data streams. As application area we have chosen the ana...
144
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SIGMOD
1999
ACM
15 years 9 months ago
1999
ACM
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
118
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SSDBM
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract. We introduce AdaptPD, an automated physical design tool that improves database performance by continuously monitoring changes in the workload and adapting the physical de...
142
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SIGMOD
1999
ACM
15 years 9 months ago
1999
ACM
Several techniques that compute the join between two spatial datasets have been proposed during the last decade. Among these methods, some consider existing indices for the joined...