Measuring Qualities of Query Answers in Fuzzy Relational Databases | |
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學年 | 98 |
學期 | 1 |
出版(發表)日期 | 2009-09-01 |
作品名稱 | Measuring Qualities of Query Answers in Fuzzy Relational Databases |
作品名稱(其他語言) | |
著者 | Shih, Chien-chou |
單位 | 淡江大學資訊傳播學系 |
出版者 | 淡江大學 |
著錄名稱、卷期、頁數 | International Journal of Information and Management Sciences 20(3), pp.365-378 |
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. |
關鍵字 | Fuzzy Disjunctive Information; Matching Information; Complementing Information |
語言 | en |
ISSN | 1017-1819 |
期刊性質 | 國內 |
收錄於 | EI TSSCI |
產學合作 | |
通訊作者 | Shih, Chien-chou |
審稿制度 | 是 |
國別 | TWN |
公開徵稿 | |
出版型式 | 紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50454 ) |