决策演化集的膜结构  

Membrane Membrane Structure of Decision Evolution Sets

作　　者：胡玉文[1,2,3] 徐久成 徐天贺 

机构地区：[1]河南师范大学计算机与信息工程学院,新乡453007 [2]河南省高校计算智能与数据挖掘工程技术研究中心,新乡453007 [3]河南师范大学图书馆,新乡453007

出　　处：《数据采集与处理》2017年第5期1022-1033,共12页Journal of Data Acquisition and Processing

基　　金：国家自然科学基金(60873104;61040037;61370169)资助项目;河南省科技攻关重点项目(112102210194)资助项目;河南省教育厅科学技术研究重点项目(13A520529)资助项目;河南省高等学校人文社会科学研究项目(2013-QN-371)资助项目;2013河南师范大学教育项目资助项目;河南师范大学青年科学基金(2014QK28)资助项目;河南省高等学校重点科研项目(16A520057)资助项目

摘　　要：决策演化集是处理决策规则在时间序列上演化问题的理论,它将着眼点从静态决策信息系统转移到动态时间序列上,研究决策信息系统随时间变化的演化规律,是一种新的决策规则研究方法。目前,在决策演化集的标准结构下,其定义的演化轨迹是一个很难描绘的n维空间图形,所以本文提出了膜结构重新描述决策演化集,在膜结构下,被约简掉的属性同样会获得重视。在当时间从ti-1进入ti时,属性根据自身对决策的影响而进入不同的膜,同时所产生的数据流动也被标记出来,从而解决了决策信息系统演化轨迹具象化的问题,并通过实例演示了决策信息系统的演化过程和轨迹。As a new research method for decision rules,decision evolution set is the theory to deal with evolution problems of decision rules in time series,which transfers the focus from static information system to dynamic time series and studies the time-dependent evolution regulations of decision information systems.At present,the evolution trace defined by normal structure of decision evolution set is agraph in n-dimensional space,which is difficult to describe.So the membrane structure is newly proposed in this paper to describe the decision evolution set.In the membrane structure,the reduced attributes are got attention in the same way.When the time goes from point ti-1 to point ti,attributes will enter different membranes based on their influence to decision and the data flow made in the process will be labelled at the same time.Thereby the problem of evolution trajectory visualization for decision information system is then solved.And the evolution process and trace of decision evolution system has been demonstrated by using some samples.

关 键 词：粗糙集 粒度决策 决策演化 膜结构 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]