基于粗糙集的可拓评判权值确定

基于粗糙集的可拓评判权值确定

车茜¹，陈剑平¹，阙金声²

1.吉林大学建设工程学院，长春 130026;2.北京国电华北电力工程有限公司，北京 100011

收稿日期:2007-06-05 修回日期:1900-01-01 出版日期:2008-03-26 发布日期:2008-03-26
通讯作者: 车茜

Determination of Weight Factor with Extenics Evaluation Based on Rough Set Theory

CHE Qian¹，CHEN Jian-ping¹，QUE Jin-sheng²

1.College of Construction Engineering, Jilin University, Changchun 130026, China;2.North China Power Engineering (Beijing)Ltd.Co, Beijing 100011, China

Received:2007-06-05 Revised:1900-01-01 Online:2008-03-26 Published:2008-03-26
Contact: CHE Qian

摘要/Abstract

摘要： 为了避免传统的权值确定方法所带来的主观性影响，将粗糙集理论引入可拓权重系数的求解过程中，使权系数问题转化为属性重要度评价问题。通过建立决策表并进行知识约简，确定相应的评价指标，利用各评价指标的重要度计算出相应的权值。这种方法可以更好地避免主观因素对权值的影响，使权值更具有客观性。通过实际工程应用，将粗糙集理论确定的权值与关联函数求得的权值进行对比，证明了基于粗糙集的可拓权值是合理可靠的。

关键词: 粗糙集, 可拓学, 属性约简, 权重系数

Abstract: To avoid the excessive subjectivity influenced by the conventional determination methods of weight factor, the rough set was introduced to the solution of the weight factor in the extenics evaluation. The problem of the weight factor was transformed to the evaluating of the attribute significance. The decision table was established by the rough set theory to make the knowledge reduced and determine the relevant evaluating indexes. According to the significance of evaluating indexes, the weight factor can be calculated. By comparing the weight factors figured out by the rough set theory and by the dependent function method in the practical engineering, its known that the weight factor based on rough set is more reasonable and with higher reliability.

Key words: rough set, extenics, attribute reduction, weight factor

中图分类号:

P642

车茜，陈剑平，阙金声. 基于粗糙集的可拓评判权值确定[J]. J4, 2008, 38(2): 268-0272.

CHE Qian，CHEN Jian-ping，QUE Jin-sheng. Determination of Weight Factor with Extenics Evaluation Based on Rough Set Theory[J]. J4, 2008, 38(2): 268-0272.

参考文献

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