Abstract
Database integration is an important discipline for constructing heterogeneous multidatabases on one hand. On the other hand, fuzzy information has been introduced into databases and studied extensively. One of the main problems in integration of multidatabases developed in different sites is resolution of conflicts. This problem becomes very complex when databases contain fuzzy information. Little has been reported on integrating fuzzy multidatabases so far. In this paper, we focus on integrating possibility-based fuzzy relational databases. The new types of conflicts arising in schema level and instance level in the fuzzy multidatabase integration are identified. The resolutions of the new types of conflicts are proposed. In particular, a method for identifying the entities in the fuzzy multidatabase integration with incompatible keys is developed.
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