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    题名: Measuring Qualities of Query Answers in Fuzzy Relational Databases
    作者: Shih, Chien-chou
    贡献者: 淡江大學資訊傳播學系
    关键词: Fuzzy Disjunctive Information;Matching Information;Complementing Information
    日期: 2009-09
    上传时间: 2010-08-09 17:56:05 (UTC+8)
    出版者: 淡江大學
    摘要: This paper proposes a method for determining the qualities of answers with respect to the query in fuzzy relational databases. Imprecise information can be represented logically by fuzzy disjunctive information handled in an extended fuzzy relational model. Two kinds of supplemental measurements are employed for matching information and complementing information, in order to measure the quality of answers to the associated queries. The complementing information can be considered as a measure of the required information for a possible answer to be a sure answer with respect to a query. The proposed method is found useful to resolve the query evaluation problems in fuzzy relational database and measuring uncertainty by Entropy information. Accordingly, the quality of a possible answer is higher in the case where less complementing information is required.
    關聯: International Journal of Information and Management Sciences 20(3), pp.365-378
    显示于类别:[資訊傳播學系暨研究所] 期刊論文

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