7576 search results - page 200 / 1516 » On Querying Ontologies and Databases |
171
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ICDE
2011
IEEE
14 years 10 months ago
2011
IEEE
— Enterprise database systems handle a variety of diverse query workloads that are of different importance to the business. For example, periodic reporting queries are usually mi...
264
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VLDB
2004
ACM
16 years 6 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
156
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CDB
2004
Springer
15 years 10 months ago
2004
Springer
Abstract. Constraint databases that can be described by boolean combinations of polynomial inequalities over the reals have received ample research attention. In particular, the ex...
153
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WWW
2004
ACM
16 years 7 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...
152
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WAIM
2005
Springer
16 years 2 days 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...