Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
384536 | Expert Systems with Applications | 2009 | 7 Pages |
Abstract
This paper considers the data operation for multi-databases in an extended possibility-based data model. Owing to the complexity of the data model considered, inconsistent redundancy of tuples may occur when database relations being operated are associated with different resemblance relations on a given domain. This work first demonstrates the inconsistency problem, and then presents the notions of consistency constraints for multi-database design. Under the constraints, the extended possibility-based databases using different resemblance relations can preserve consistent redundancy.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Julie Yu-Chih Liu, Pei-Chann Chang, Clark P.C. Yeh,