Type-reduction of the discretised interval type-2 fuzzy set

被引:26
作者
Greenfield, Sarah [1 ]
Chiclana, Francisco [1 ]
John, Robert [1 ]
机构
[1] De Montfort Univ, Ctr Computat Intelligence, Leicester LE1 9BH, Leics, England
来源
2009 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS, VOLS 1-3 | 2009年
关键词
D O I
10.1109/FUZZY.2009.5277411
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We begin by surveying the available strategies for type-reducing a discretised type-2 fuzzy set to a type-1 fuzzy set, namely the exhaustive method, the Karnik-Mendel Iterative Procedure, the sampling method, the Greenfield-Chiclana Collapsing Defuzzifier and the Nie-Tan method. We go on to investigate mathematically what happens to the Representative Embedded Set Approximation as the domain discretisation becomes finer. This leads into a discussion of the relationship between the collapsing and Nie-Tan methods. An experimental comparison is made between the collapsing and Nie-Tan methods, with respect to both efficiency and accuracy.
引用
收藏
页码:738 / 743
页数:6
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