Homomorphisms Between Covering Approximation Spaces
Homomorphisms Between Covering Approximation Spaces
复制标题
覆盖近似空间之间的同态
DOI:
10.3233/fi-2015-1216
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发表时间:
2015-07
影响因子:
0.8
通讯作者:
Guo Lankun
中科院分区:
文献类型:
--
作者:
Lang Guangming;li Qingguo;Guo Lankun
The introduction of information system homomorphisms has made a substantial contribution to attribute reduction. However, the efforts made on homomorphisms are far from sufficient. This paper further investigates homomorphisms between covering approximation spaces. First, we introduce the concepts of upper and lower homomorphisms as well as homomorphisms in order to study the relationship between covering approximation spaces. Then we present the notions of covering approximation subspaces and product spaces. We also compress covering approximation spaces and covering information systems with the aim of attribute reduction. Afterwards, by utilizing the compressions of the original spaces and systems we compress the dynamic covering approximation spaces and dynamic covering information systems. Several illustrative examples are employed to demonstrate that the homomorphisms provide an effective approach for compressing covering approximation spaces and covering information systems.
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影响因子:
2
作者:
Xiao, Zhiyong;Gong, Zengtai
通讯作者:
Gong, Zengtai
DOI:
10.1007/978-3-319-99368-3
发表时间:
2018-10
期刊:
--
影响因子:
--
作者:
R. Efendi;Voni Apriana Dewi;Rahmadeni;Sri Basriati;Dadang Syarif
通讯作者:
R. Efendi;Voni Apriana Dewi;Rahmadeni;Sri Basriati;Dadang Syarif
DOI:
10.1016/j.ins.2012.01.026
发表时间:
2006-12
期刊:
2006 Sixth International Conference on Hybrid Intelligent Systems (HIS'06)
影响因子:
--
作者:
William Zhu;Fei-Yue Wang
通讯作者:
William Zhu;Fei-Yue Wang
影响因子:
1.2
作者:
J. Grzymala-Busse;W. A. Sedelow
通讯作者:
J. Grzymala-Busse;W. A. Sedelow
影响因子:
7
作者:
J. Grzymala-Busse;Yiyu Yao
通讯作者:
J. Grzymala-Busse;Yiyu Yao