6846 search results - page 161 / 1370 » Querying a summary of database |
161
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SEKE
2007
Springer
16 years 16 days ago
2007
Springer
In this paper, we present an approach to query processing for paraconsistent databases in the presence of integrity constraints. Paraconsistent databases are capable of representi...
170
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ISMIS
2000
Springer
15 years 10 months ago
2000
Springer
A top-down query processing method for first order deductive databases under the disjunctive well-founded semantics (DWFS) is presented. The method is based upon a characterisation...
188
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DBSEC
2006
15 years 7 months ago
2006
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
191
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DKE
1998
15 years 6 months ago
1998
The main purpose of this paper is to investigate the characteristics that distinguish spatial databases systems from traditional ones. Hereto, we give an overview of some well-kno...
271
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between query scores and data uncertainty ma...