Correlation of Fuzzy Numbers by α-Cut Method

機構典藏 > College of Business and Management > Graduate Institute & Department of Statistics > Journal Article > Item 987654321/20693

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/20693

Title:	Correlation of Fuzzy Numbers by α-Cut Method
Authors:	Hung, Wen-liang;吳忠武;Wu, Jong-wuu
Contributors:	淡江大學統計學系
Keywords:	α-cut;correlation coefficient;fuzzy number;interval-valued fuzzy number
Date:	2002-12-01
Issue Date:	2009-11-30 12:56:47 (UTC+8)
Publisher:	World Scientific Publishing
Abstract:	In this paper, we propose a method to calculate the correlation coefficient of fuzzy numbers by means of "α-cut". This value obtained from our formula tells 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 "α-cut" 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.
Relation:	International journal of uncertainty, fuzziness and knowledge-based systems 10(6), pp.725-735
DOI:	10.1142/S0218488502001752
Appears in Collections:	[Graduate Institute & Department of Statistics] Journal Article

Files in This Item:

File	Description	Size	Format
Correlation of Fuzzy Numbers by α-Cut Method.pdf		769Kb	Adobe PDF	1	View/Open
index.html		0Kb	HTML	171	View/Open