8763 search results - page 195 / 1753 » Querying Database Knowledge |
138
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KSEM
2007
Springer
15 years 10 months ago
2007
Springer
Abstract. In this paper we propose a model that allows agents to deliberate using defeasible argumentation, to share knowledge with other agents, and to represent individual knowle...
112
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WWW
2004
ACM
16 years 5 months ago
2004
ACM
This paper describes a query algebra for queries over XML p2p databases that provides explicit mechanisms for modeling data dissemination, replication constraints, and for capturi...
118
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WAIM
2005
Springer
15 years 10 months ago
2005
Springer
In order to lay a solid foundation for the emerging semantic web, effective and efficient management of large RDF(S) data is in high demand. In this paper we propose an approach t...
131
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SSD
1993
Springer
15 years 8 months ago
1993
Springer
: Due to the high complexity of objects and queries and also due to extremely large data volumes, geographic database systems impose stringent requirements on their storage and acc...
189
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
Commercial database systems expose query hints to fix poor plans produced by the query optimizer. However, current query hints are not flexible enough to deal with a variety of no...