سال انتشار: ۱۳۸۶
محل انتشار: اولین کنگره مشترک سیستم های فازی و سیستم های هوشمند
تعداد صفحات: ۶
T Razzaghnia – Department of Statistics, Islamic Azad University, Roudehen Branch, Tehran, Iran.
E Pasha – Department of Mathematics, Teacher Training University, Tehran, Iran
E Khorram – Faculty of Mathematics and Computer Science, Amirkabir University of Technology, Tehran, Iran
A Razzaghnia – Faculty of Mathematics and Computer Science, Amirkabir University of Technology, Tehran, Iran.
In this paper, we aim to extended the constraints of Tanaka’s model. Applied coefficients of the fuzzy regression by them is the symmetric triangular fuzzy numbers, while we try to replace it by more general asymmetric trapezoidal one. Possibility of two asymmetric trapezoidal fuzzy numbers is explained by possibility distribution. Two different models is presented and a numerical example is given in order to compare the proposed models with previous one. Error values shows advantage of the presented models with respect to constraints of Tanaka’s model.