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	Efficient algorithms for attributes reduction problem
	Tan, Songbo; Xu, Hongbo; Gu, Jun
刊名	International journal of innovative computing information and control
	2005-12-01
卷号	1期号:4页码:767-777
关键词	Rough set Attributes reduction Discernibility matrix Data mining
ISSN号	1349-4198
通讯作者	Tan, songbo(tansongbo@software.ict.ac.cn)
英文摘要	The theory of rough set, proposed by pawlak, provides a formal tool for knowledge discovery from imprecise and incomplete data. attributes reduction is a crucial problem for rough set based data mining. unfortunately, finding minimal reduct turns out to be a np-hard problem. in this paper, we propose a heuristic reduction algorithm heurired and a complete heuristic reduction algorithm heuricomred based on discernibility matrix. the time and space requirements of two proposed algorithms are both o(\a\*\u\(2)). in our experiment, in order to investigate the robustness, efficiency and completeness of proposed algorithms, we execute our algorithms heurired, heuricomred and genetic reduct on some problems from uci repository. the experimental results not only indicate the robustness and efficiency of our algorithms, but also provide proofs for the completeness of our algorithm heuricomred.
WOS关键词	ROUGH SETS ; SYSTEMS
WOS研究方向	Automation & Control Systems ; Computer Science
WOS类目	Automation & Control Systems ; Computer Science, Artificial Intelligence
语种	英语
出版者	ICIC INTERNATIONAL
WOS记录号	WOS:000242254900014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377283
专题	中国科学院大学
通讯作者	Tan, Songbo
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Software Dept, Grad Sch, Beijing 100080, Peoples R China 2.Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Tan, Songbo,Xu, Hongbo,Gu, Jun. Efficient algorithms for attributes reduction problem[J]. International journal of innovative computing information and control,2005,1(4):767-777.
APA	Tan, Songbo,Xu, Hongbo,&Gu, Jun.(2005).Efficient algorithms for attributes reduction problem.International journal of innovative computing information and control,1(4),767-777.
MLA	Tan, Songbo,et al."Efficient algorithms for attributes reduction problem".International journal of innovative computing information and control 1.4(2005):767-777.

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