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In this paper, the structural information between tree nodes of XML documents is represented without any structural changes of the tree by converting that number information added to the tree into bit streams. It is also shown that other structural information can be retrieved and added to index schema in the process. In this process, the authors confirm that the response time can be minimized by conducting a bit operation between the bit streams with index schema in use, and accurate results can be reached by searching only with information of record sets by nodes in index files.
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