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In recent years, the extraction of data from XML documents is an important issue for XML research and development. Fuzzy processing techniques have been proposed for flexible querying to Native XML Databases. The authors propose the fuzzy XQuery processing techniques for Native XML database systems, where the weights of attributes can be described by linguistic terms represented by fuzzy numbers. The proposed fuzzy XQuery processing techniques allow the users to use linguistic terms in the XQueries represented by fuzzy sets. The proposed Fuzzy XQuery processing applies the arithmetic operations of fuzzy sets. The proposed fuzzy query processing techniques can deal with the users' fuzzy queries in a more flexible and more intelligent manner.
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