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《Journal of Northeastern University(Natural Science)》 2003-08
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New Method of Discretization of Continuous Attributes Based on Rough Set

TAO Zhi, XU Baodong, WANG Dingwei, LI Ran(School of Information Science & Engineering, Northeastern University, Shenyang 110004, China. Correspondent: TAO Zhi, Email: t86543213?@?163.com)  
Based on theory of the rough set, a new method of discretization of continuous attributes was presented.The traditional rough set theory can only deal with the discrete attributes in database.The concept of decision attribute support degree was proposed. Using feedback information from decision attribute support degree a new method of discretization of continuous attributes was proposed based on independent domain. The suggested method can improve the efficiency of knowledge reduction when the original decision table keeps stable. At the same time, the rule sets are simple with less segmental interval. The approach is encouraging and effective.
【Fund】: 国家自然科学基金资助项目(70171056);; 国家重点科技攻关项目(975620107)
【CateGory Index】: TP18
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