Weighted Trapezoidal Approximations of Fuzzy Numbers

被引：0
|
作者：
Grzegorzewski, Przemyslaw [1 ,2 ]
Pasternak-Winiarska, Karolina [2 ]
机构：
[1] Polish Acad Sci, Syst Res Inst, Newelska 6, PL-01447 Warsaw, Poland
[2] Warsaw Univ Technol, Fac Math & Informat Sci, PL-00661 Warsaw, Poland
来源：
PROCEEDINGS OF THE JOINT 2009 INTERNATIONAL FUZZY SYSTEMS ASSOCIATION WORLD CONGRESS AND 2009 EUROPEAN SOCIETY OF FUZZY LOGIC AND TECHNOLOGY CONFERENCE | 2009年
关键词：
fuzzy number; expected interval; trapezoidal approximation; width; weighted distance; EXPECTED INTERVAL; TRIANGULAR APPROXIMATIONS; FORM;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Fuzzy number approximation by trapezoidal fuzzy numbers which preserves the expected interval is discussed. New algorithms for calculating the proper trapezoidal approximation of fuzzy numbers with respect to the distance based on bi-symmetrical weighted functions are proposed. It is shown that the adequate approximation operator is chosen with respect both to the global spread of a fuzzy number and the size of possible asymmetry between the spread of the left-hand and right-hand part of a fuzzy number.
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页码：1531 / 1534
页数：4
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