کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6857922 | 664775 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Decision-theoretic three-way approximations of fuzzy sets
ترجمه فارسی عنوان
تقریبی سه گانه تصمیم گیری مجموعه های فازی
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کلمات کلیدی
تقریبی مجموعه فازی، مجموعه سایه تصمیم سه گانه، سه گانه،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
هوش مصنوعی
چکیده انگلیسی
A three-way, three-valued, or three-region approximation of a fuzzy set is constructed from a pair of thresholds (α,β) on the fuzzy membership function. An element whose membership grade equals to or is greater than α is put into the positive region, an element whose membership grade equals to or is less than β is put into the negative region, and an element whose membership grade is between β and α is put into the boundary region. A fundamental issue is the determination and interpretation of the required pair of thresholds. In the framework of shadowed sets (i.e., an example of three-way approximations of fuzzy sets), Pedrycz provides an analytic solution to computing the thresholds by searching for a balance of uncertainty introduced by the three regions. To gain further insights into three-way approximations of fuzzy sets, we introduce an alternative decision-theoretic formulation in which the required thresholds are computed by minimizing decision cost.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volume 279, 20 September 2014, Pages 702-715
Journal: Information Sciences - Volume 279, 20 September 2014, Pages 702-715
نویسندگان
Xiaofei Deng, Yiyu Yao,