Research on multiple sources schema matching method based on prime number

Schema matching is the task of finding semantic correspondences between elements of two schemas, and it is a critical operation in the process of data integration. With the rapid increase of online databases, the large scale matching makes multiple sources schema matching method become the focus of the area of schema matching. A multiple sources schema matching method based on prime number is proposed against the limitations of existed multiple schema matching methods,and the concrete algorithm, PMSM, is also proposed. Prime number is introduced to the process of the schema matching, which changes the character matching to the mathematical operation, the efficiency of the matching is improved obviously, and the advantages of the existing schema matching methods are kept. The experimental result shows that PMSM is feasible.