501 search results - page 1 / 101 » Simplification of Integrity Constraints for Data Integration |
FOIKS
2004
Springer
13 years 8 months ago
2004
Springer
When two or more databases are combined into a global one, integrity may be violated even when each database is consistent with its own local integrity constraints. Efficient metho...
DEXAW
2006
IEEE
13 years 8 months ago
2006
IEEE
When a database is defined as views over autonomous sources, inconsistencies with respect to global integrity constraints are to be expected. This paper investigates the possibili...
FQAS
2004
Springer
13 years 8 months ago
2004
Springer
In the context of relational as well as deductive databases, correct and efficient integrity checking is a crucial issue, as, without any guarantee of data consistency, the answers...
VLDB
1993
ACM
13 years 9 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...
EDBT
2012
ACM
11 years 7 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...