National Changhua University of Education Institutional Repository : Item 987654321/8858

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NCUEIR > College of Science > math > Periodical Articles > Item 987654321/8858

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/8858

Title:	A Discretization Algorithm Based on Class-Attribute Contingency Coefficient
Authors:	Cheng-Jung Tsai;Chien-I. Lee;Wei-Pang Yang
Contributors:	數學系
Keywords:	Data mining;Classification;Decision tree;Discretization;Contingency coefficient
Date:	2008-02
Issue Date:	2011-05-10T06:29:08Z
Publisher:	Elsevier Science
Abstract:	Discretization algorithms have played an important role in data mining and knowledge discovery. They not only produce a concise summarization of continuous attributes to help the experts understand the data more easily, but also make learning more accurate and faster. In this paper, we propose a static, global, incremental, supervised and top-down discretization algorithm based on Class-Attribute Contingency Coefficient. Empirical evaluation of seven discretization algorithms on 13 real datasets and four artificial datasets showed that the proposed algorithm could generate a better discretization scheme that improved the accuracy of classification. As to the execution time of discretization, the number of generated rules, and the training time of C5.0, our approach also achieved promising results.
Relation:	Information Sciences, 178(3):714-731
Appears in Collections:	[math] Periodical Articles

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