粗积分的粗变化率及其特性

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粗积分的粗变化率及其特性

于秀清^1,2

1. 德州学院, 山东德州 253014; 2. 山东大学数学学院, 山东济南 250100

收稿日期:2008-10-17 修回日期:1900-01-01 出版日期:2009-02-24 发布日期:2009-05-31
通讯作者: 于秀清

1. Dezhou College, Dezhou 253014, Shandong, China;
2. School of Mathematics, Shandong University, Jinan 250100, Shandong, China

Received:2008-10-17 Revised:1900-01-01 Online:2009-02-24 Published:2009-05-31

摘要/Abstract

摘要： P粗积分是由函数双向S粗集生成的一个积分对,当有属性迁出同时又有属性迁入系统时, P粗积分发生变化,就具有了一系列动态特性。在P粗积分动态特性的基础上定义了粗变化度与粗变化率,并研究了其特性。而且粗变化率将迁出与迁入的属性(或P=F∪)对系统产生的作用进行了量化。为有目的地调整系统提供了理论依据。

关键词: 粗变化度, 粗变化率, P粗积分, 动态特性

Abstract: Prough integrals is composed of one pair of the integrals generated by function two direction Srough sets. When some attributes move in and out, Prough integrals change, which then has a series of dynamic characteristics. Based on Prough integrals dynamic characteristics, rough changing degree and rough changing ratio are defined, and their characteristics are discussed. Rough changing ratio makes the effect produced by attributes that are moving in and out (or P=F∪) be expressed with numbers. It provides theory proof for adjusting the system on purpose.

Key words: Prough integrals, dynamic characteristics, rough changing degree, rough changing ratio

中图分类号:

O159

于秀清1,2 . 粗积分的粗变化率及其特性[J]. J4, 2009, 44(4): 92-96 .

参考文献

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