2516 search results - page 149 / 504 » Integrity Constraints for XML |
159
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SIGMOD
2005
ACM
15 years 10 months ago
2005
ACM
Data integrated from multiple sources may contain inconsistencies that violate integrity constraints. The constraint repair problem attempts to find "low cost" changes t...
TC
1997
14 years 11 months ago
1997
In this paper we describe a new approach to repairing violations of integrity constraints in databases with null values. By adopting basic concepts from model-based diagnosis, we ...
110
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SAC
2006
ACM
14 years 10 months ago
2006
ACM
Integrity constraints (ICs) play a key role in the definition of conceptual schemas. In the UML, ICs are usually specified as invariants written in the OCL. However, due to the hi...
FLAIRS
2004
14 years 11 months ago
2004
We discuss description and reasoning over regions. We have proposed a system called SRCC that integrates integration of spatial and semantic data. SRCC can describe and reason abo...
ACL
1998
14 years 11 months ago
1998
We introduce a first-order language for semantic underspecification that we call Constraint Language for Lambda-Structures (CLLS). A Astructure can be considered as a A-term up to...