DocumentCode
1996944
Title
Further Discussion of the Problem about Conditions of Neighborhoods Forming a Partition
Author
Nianbai Fan ; Zhenyu Huang ; Tao Sun ; Yongfu Zhang
Author_Institution
Inst. of Inf. Sci. & Eng., Hunan Univ., Changsha, China
fYear
2013
fDate
3-4 Dec. 2013
Firstpage
61
Lastpage
65
Abstract
There is an open question regarding Rough Set theory propsosed by Yun and Qiu(2011), which are how to characterize the conditions for a neighborhood of a data item approximations to form a partition of the universe U of the data by using only their upper and lower operators. The first part of the question has been solved Fan and Hu(2012). In this paper, another part of the question is addressed by a special and simple method, and some significant results are obtained.
Keywords
approximation theory; mathematical operators; rough set theory; data item approximation; lower operators; neighborhood forming conditions; rough set theory; upper operators; Approximation methods; Computer science; Educational institutions; Information science; Rough sets; Covering; Lower approximation; Neighborhhod; Partition; Upper approximation;
fLanguage
English
Publisher
ieee
Conference_Titel
Intelligent Systems (GCIS), 2013 Fourth Global Congress on
Conference_Location
Hong Kong
Print_ISBN
978-1-4799-2885-9
Type
conf
DOI
10.1109/GCIS.2013.16
Filename
6805913
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