关键词: 信息集成, 一致性, 修复, 数据库

Abstract: To repair error or inconsistent data produced in the operations of enterprise's multiple sources databases effectively and automatically,a new repairing algorithm based on functional dependencies and inclusion dependencies was presented.For violations on functional dependencies,the related attribute statistical measures were computed by this algorithm and the tuples to be modified by tuples'confidence were selected.Aiming at the violations on inclusion dependencies,parts of attribute values between different datasets were matched and the method to update or insert new tuples was determined.Deletion operations were not adopted in the algorithms for no loss of information in original databases.The proposed algorithm had features such as objective,accurate and efficient,and could solve the inconsistent problems in enterprise information integration.

Key words: information integration, consistency, repair, database