152 search results - page 3 / 31 » Semantic Integrity Constraints for Spatial Databases |
IS
2008
13 years 6 months ago
2008
Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
VLDB
1993
ACM
13 years 10 months ago
1993
ACM
The enforcement of semantic integrity constraints in data and knowledge bases constitutea a major performance bottleneck. Integrity constraint simplification methods aim at reduci...
DBPL
2005
Springer
2005
Springer
Complexity and Approximation of Fixing Numerical Attributes in Databases Under Integrity Constraints
13 years 11 months ago
Consistent query answering is the problem of computing the answers from a database that are consistent with respect to certain integrity constraints that the database as a whole ma...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
We study active integrity constraints and revision programming, two formalisms designed to describe integrity constraints on databases and to specify policies on preferred ways to...
IJCIS
1998
13 years 5 months ago
1998
The problem of integrating information from con icting sources comes up in many current applications, such as cooperative information systems, heterogeneous databases, and multi-a...