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
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
نویسندگان
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