New method for discretization of continuous attributes in rough set theory

被引：7
|
作者：
Cong, Rong [1 ,2 ]
Wang, Xiukun [1 ]
Li, Kai [3 ]
Yang, Nanhai [1 ]
机构：
[1] Dalian Univ Technol, Sch Elect & Informat Engn, Dalian 116024, Peoples R China
[2] Dalian Naval Acad, Educ Technol Ctr, Dalian 116018, Peoples R China
[3] 92538 Unit PLA, Dalian 116041, Peoples R China
来源：
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2010年 / 21卷 / 02期
关键词：
rough set; discretization; reduction;
D O I：
10.3969/j.issn.1004-4132.2010.02.013
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new method for discretization of continuous attributes is put forward to overcome the limitation of the traditional rough sets, which cannot deal with continuous attributes. The method is based on an improved algorithm to produce candidate cut points and an algorithm of reduction based on variable precision rough information entropy. With the guarantee of consistency of decision system, the method can reduce the number of cut points and improve efficiency of reduction. Adopting variable precision rough information entropy as measure criterion, it has a good tolerance to noise. Experiments show that the algorithm yields satisfying reduction results.
引用
收藏
页码：250 / 253
页数：4
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