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Optimization Analysis on Dynamic Reduction Algorithm

  • Yizhou Chen and Jiayang Wang
Published/Copyright: October 1, 2018
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Abstract

On the basis of rough set theory, the strengths of dynamic reduction are elaborated compared with traditional non-dynamic methods. A systematic concept of dynamic reduction from sampling process to the generation of the reduct set is presented. A new method of sampling is created to avoid the defects of being too subjective. And in order to deal with the over-sized time consuming problem in traditional dynamic reduction process, a quick algorithm is proposed within the constraint conditions. We have also proved that dynamic core possesses the essential characteristics of a reduction core on the basis of the formalized definition of the multi-layered dynamic core.


The research is partially supported by the National Natural Science Foundation of China (61772031), Funds for Energy Conservation of Changsha and the Fundamental Research Funds for Central Universities of Central South University (2017zzts514)


Acknowledgements

The authors gratefully acknowledge the editor and two anonymous referees for their insightful comments and helpful suggestions that led to a marked improvement of the article.

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Received: 2017-06-21
Accepted: 2018-01-16
Published Online: 2018-10-01

© 2018 Walter De Gruyter GmbH, Berlin/Boston

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