A Reduction Algorithm of Positive Domain for Decision Table Based on Values Coarsening

JING Yun-Ge

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A Reduction Algorithm of Positive Domain for Decision Table Based on Values Coarsening

更新时间：2026-09-04

- A Reduction Algorithm of Positive Domain for Decision Table Based on Values Coarsening
- Vol. 32, Issue 2, Pages: 47-51(2015)
- 作者机构：
  
  1. 1 山西运城学院机构公共计算机教学部,山西,运城,044000
  2. 2 西南交通大学信息科学与技术学院,四川,成都,610031
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
景运革. 一种基于属性值粗化的决策表正域约简算法[J]. 微电子学与计算机, 2015, 32(2): 47-51,55.

JING Yun-Ge. A Reduction Algorithm of Positive Domain for Decision Table Based on Values Coarsening[J]. 2015, 32(2): 47-51.
景运革. 一种基于属性值粗化的决策表正域约简算法[J]. 微电子学与计算机, 2015, 32(2): 47-51,55. DOI：

JING Yun-Ge. A Reduction Algorithm of Positive Domain for Decision Table Based on Values Coarsening[J]. 2015, 32(2): 47-51. DOI：

摘要

目前粗糙集模型属性约简大多是基于静态信息系统

而实际决策表的数据信息都是动态变化的

为了有效地对这些数据集进行处理

在信息系统属性值粗化时

首先介绍了关系矩阵增量机制

提出了一种粗糙集增量式约简的矩阵方法并构造其相应的算法

最后

通过实例分析来说明属性约简的具体操作方法和算法的有效性与可行性.

Abstract

Most methods for attribute reduction in Rough Set model is based on static information system nowadays. However

data in real decision table changing dynamically. For dealing with such data effectively and efficiently

we first introduce incremental mechanisms for relation matrix and then develop an incremental algorithm for attribute reduction based on modified equivalence relation matrix. by which minimal attribute reduction of new decision table can be obtained quickly when when attribute values are Coarsened. Finally

Example confirms the feasibility and effectiveness of proposed operation and method of attribute reduction.

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Related Author

JING Yun-ge

HUANG Jun-fu

LIU Zheng

CHEN Xue-qin

ZHANG Shu-feng

CHEN Xi

LIU Jing

LI Yin-huan

Related Institution

1 Department of Public Computer Teaching, Yuncheng College

2 School of Information Science and Technology, Southwest Jiaotong University

College of Electronic Information, Suzhou University

College of Information Engineering, Service Outsourcing Vocational College of Suzhou Industrial Park

School of Management, Huazhong University of Science and Technology

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