3678 search results - page 393 / 736 » Personalization of Queries in Database Systems |
206
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EWDW
1994
15 years 10 months ago
1994
For object-oriented databases we propose a new technique for optimizing queries containing method invocations. This technique is based on the definition of inverse methods and que...
187
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GVD
2004
15 years 8 months ago
2004
Abstract. Checking the consistency of query conditions is an old problem, and there are already many proposed solutions. Since the problem is in general undecidable, there is not a...
171
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FUIN
2006
15 years 6 months ago
2006
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...
196
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PPDP
2010
Springer
15 years 4 months ago
2010
Springer
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
192
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
Applications ranging from location-based services to multi-player online gaming require continuous query support to monitor, track, and detect events of interest among sets of mov...