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» Semantic Integrity Constraints for Spatial Databases
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INTEROP
1999
Springer
126views GIS» more  INTEROP 1999»
13 years 9 months ago
Identifying Semantically Similar Elements in Heterogeneous Spatial Databases Using Predicate Logic Expressions
For data to be successfully integrated, semantically similar database elements must be identified as candidates for merging. However, there may be significant differences between ...
Kristin Stock, David Pullar
FLAIRS
2004
13 years 6 months ago
Reasoning on Spatial Constraints over Regions
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...
Kazuko Takahashi
IDEAS
1999
IEEE
131views Database» more  IDEAS 1999»
13 years 9 months ago
ISIS: A Semantic Mediation Model and an Agent Based Architecture for GIS Interoperability
The diversity of spatial information systems promotes the need to integrate heterogeneous spatial or geographic information systems (GIS) in a cooperative environment. This paper ...
Eric Leclercq, Djamal Benslimane, Kokou Yét...
DAWAK
2009
Springer
13 years 10 months ago
Mining Violations to Relax Relational Database Constraints
Frequent constraint violations on the data stored in a database may suggest that the semantics of the represented reality is changing. In this work we propose a methodology and a t...
Mirjana Mazuran, Elisa Quintarelli, Rosalba Rossat...
VLDB
2001
ACM
126views Database» more  VLDB 2001»
14 years 5 months ago
Semantic integrity support in SQL: 1999 and commercial (object-)relational database management systems
The correctness of the data managed by database systems is vital to any application that utilizes data for business, research, and decision-making purposes. To guard databases agai...
Can Türker, Michael Gertz