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    题名: A note on the correlation of fuzzy numbers by expected interval
    作者: Hung, Wen-liang;吳忠武;Wu, Jong-wuu
    贡献者: 淡江大學統計學系
    关键词: Correlation coefficient;expected interval;fuzzy number;interval-valued fuzzy number
    日期: 2001-08
    上传时间: 2009-11-30 12:56:49 (UTC+8)
    出版者: World Scientific Publishing
    摘要: In this paper, we propose a method to calculate the correlation coefficient of fuzzy numbers by means of "expected interval" (see [8], [9]). This value obtained from our formula tell us not only the strength of relationship between the fuzzy numbers, but also whether the fuzzy numbers are positively or negatively related. This approach looks better than previous methods which only evaluate the strength of the relation. Furthermore, we extend the "expected interval" method to interval-valued fuzzy numbers. The value of the correlation coefficient between interval-valued fuzzy numbers lies in the interval [-1,1], as computed from our formula.
    關聯: International journal of uncertainty, fuzziness and knowledge-based systems 9(4), pp.517-523
    DOI: 10.1142/S0218488501000922
    显示于类别:[統計學系暨研究所] 期刊論文


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