Generalized multilayer granulation and approximations

被引：1

作者：

Xiu, BX ^{[1
]}

Zhang, WM ^{[1
]}

Wang, S ^{[1
]}

Tang, JY ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Management Sci & Engn, Changsha 410073, Peoples R China

来源：

2003 INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND CYBERNETICS, VOLS 1-5, PROCEEDINGS | 2003年

关键词：

granulation structure; approximations; neighborhood systems; rough set; quasi-order set;

D O I：

10.1109/ICMLC.2003.1259715

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Information (knowledge) granulation and approximations seem to be very important issues for computing science, and there are fast growing and renewed interests in this topic. The multilayer granulation structures, which have been discussed before, ire all defined by a nested sequence of partitions or coverings. In the context of rough set theory, this paper proposes a generalized multilayer granulation, which is not necessary to be nested. A quasi-order relation on FC(U) is defined, where FC(U) is the collection of All the coverings of the universe. A pair of lower and upper approximations iaredefined and the approximation structure is investigated.

引用

页码：1419 / 1423

页数：5

共 20 条

[1] Klir GJ, 1998, 1998 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS AT THE IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE - PROCEEDINGS, VOL 1-2, P101, DOI 10.1109/FUZZY.1998.687466
[2] Lin T.Y., 1997, ADV MACHINE INTELLIG, P132
[3] Lin T. Y., 1988, P 4 INT S METH INT S
[4] Lin T. Y., 1998, Rough Sets in Knowledge Discovery, V1, P107
[5] Lin TY, 1990, METHODOLOGIES INTELL, P130
[6] Pawlak Z, 1998, 1998 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS AT THE IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE - PROCEEDINGS, VOL 1-2, P106, DOI 10.1109/FUZZY.1998.687467
[7] Polkowski L, 1998, 1998 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS AT THE IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE - PROCEEDINGS, VOL 1-2, P111, DOI 10.1109/FUZZY.1998.687468
[8] Sierpenski W, 1956, GEN TOPOLOGY
[9] Neighborhood operator systems and approximations
Wu, WZ
Zhang, WX
[J]. INFORMATION SCIENCES, 2002, 144 (1-4) : 201 - 217
[10] Yao Y., 1999, Advances in soft computing, P539, DOI [DOI 10.1007/978-1-4471-0819-1, DOI 10.1007/978-1-4471-0819-140]

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