Application of extended rough set in diagnosis on renal insufficiency

doi:10.3778/j.issn.1002-8331.2009.11.064

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (11): 212-215.DOI: 10.3778/j.issn.1002-8331.2009.11.064

• 工程与应用 • Previous Articles Next Articles

Application of extended rough set in diagnosis on renal insufficiency

CHEN Hai-wei

Xiangya Third Hospital，Central South University，Changsha 410013，China

Received:2008-11-20 Revised:2009-02-11 Online:2009-04-11 Published:2009-04-11
Contact: CHEN Hai-wei

扩展粗糙集在肾功能不全诊断中的应用

陈海蔚

中南大学湘雅三医院检验科，长沙 410013

通讯作者: 陈海蔚

Abstract

Abstract: An extended rough set method is proposed with respect to decision problem of renal insufficiency diagnosis.This method combines dominance relation based rough set model with Variable Precision Rough Set（VPRS） model while confidence threshold of rule is regarded as the value of variable precision parameter.Firstly，criteria is discretized.Then，decision table is processed according to confidence threshold and support number threshold of rule by using the suggested algorithm.Finally，renal insufficiency diagnosis rules are mined.Feasibility of the method is demonstrated by a simple renal insufficiency diagnosis example.

Key words: dominance relation rough set, Variable Precision Rough Set（VPRS）, confidence, support number, renal insufficiency

摘要： 针对肾功能不全诊断的决策判断问题，提出了一种扩展粗糙集方法。该方法在可变精度粗糙集模型中把规则的置信度阈值当作可变精度参数值，把基于优势关系的粗糙集模型和基于可变精度粗糙集模型结合起来。首先，将准则离散化，再根据设定的规则置信度阈值和支持数阈值，利用提出的规则挖掘算法，对决策表进行处理，最后挖掘得到肾功能不全诊断规则。该方法的可行性通过一个简单肾功能不全诊断实例得到了论证。

关键词: 优势关系粗糙集, 可变精度粗糙集, 置信度, 支持数, 肾功能不全

CHEN Hai-wei. Application of extended rough set in diagnosis on renal insufficiency[J]. Computer Engineering and Applications, 2009, 45(11): 212-215.

陈海蔚. 扩展粗糙集在肾功能不全诊断中的应用[J]. 计算机工程与应用, 2009, 45(11): 212-215.

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Application of extended rough set in diagnosis on renal insufficiency

扩展粗糙集在肾功能不全诊断中的应用

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