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With the rapid development of Web, there are more and more structured web database available for users to access. At the same time, domain searchers often have difficulties in finding the right web database. In this paper, the authors study how they can build an effective web database integration system with the aim of making the system contain as much important data as possible and the least degree of query cost. In this paper, they present a method for integration of structured web database. They experimentally result on real web databases indicate that the method is highly efficientive.
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