教師資料查詢 | 類別: 期刊論文 | 教師: 葛煥昭 Keh Huan-chao (瀏覽個人網頁)

標題:A Study of Disjunctive Information in Fuzzy Relational Databases
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學期
出版(發表)日期2006/01/01
作品名稱A Study of Disjunctive Information in Fuzzy Relational Databases
作品名稱(其他語言)
著者王明華; Wang, Ming-hua; 葛煥昭; Keh, Huan-chao; 謝楠楨; Hsieh, Nan-chen; 王琮盛; Wang, Tsong-sheng
單位淡江大學資訊工程學系
出版者臺北市中央研究院資訊科學研究所
著錄名稱、卷期、頁數Journal of Information Science and Engineering 22(1), pp.199-213
摘要This paper proposes a logical reconstruction of the classical fuzzy relational database model to accommodate fuzzy disjunctive information. In query processing, we use two supplementary measurements, matching information and extra information, to model the concepts of imprecision and uncertainty, respectively. We also use these two supplementary measurements to determine the quality of answers to the query. The answers to the query thus contain sure answers and maybe answers. In addition, we discuss the redundancy problem by presenting a complete set of fuzzy relational algebra with fuzzy disjunctive information. The proposed extended fuzzy relational database model preserves the properties – uniquely-determined and well-defined properties of relational algebra to ensure that the manipulative power of the proposed model is the same as that of the classical fuzzy relational database model.
關鍵字fuzzy relational database; fuzzy disjunctive information; imprecision; uncertainty; quality of answer
語言英文
ISSN1016-2364
期刊性質國內
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國別中華民國
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