计算机工程与应用 ›› 2013, Vol. 49 ›› Issue (19): 16-19.

• 博士论坛 • 上一篇    下一篇

模糊数的梯形逼近

陆汉川,李生刚   

  1. 陕西师范大学 数学与信息科学学院,西安 710062
  • 出版日期:2013-10-01 发布日期:2015-04-20

Trapezoidal approximations of fuzzy numbers

LU Hanchuan, LI Shenggang   

  1. College of Mathematics and Information Science, Shaanxi Normal University, Xi’an 710062, China
  • Online:2013-10-01 Published:2015-04-20

摘要: 介绍了推广的梯形模糊数并证明了它的一些性质。利用推广的梯形模糊数逼近任意给定的一个模糊数,指出梯形逼近共有四种情形,给出了更具体、更直观的计算最近的梯形逼近的方法和例子。

关键词: 模糊数, 期望区间, 最近的梯形逼近, 推广的梯形模糊数

Abstract: This paper introduces the extended trapezoidal fuzzy number, and proves some properties of it. By using the extended trapezoidal fuzzy number to approximate any given fuzzy number, it is pointed that there are four cases on trapezoidal approximation, and a more detailed and more intuitive method to compute trapezoidal approximation and related examples are given.

Key words: fuzzy number, expected interval, the nearest trapezoidal approximation, extended trapezoidal fuzzy number