Knowledge recommendation for product development using integrated rough set-information entropy correction

2020 ◽  
Vol 31 (6) ◽  
pp. 1559-1578 ◽  
Author(s):  
Zhenyong Wu ◽  
Lina He ◽  
Yuan Wang ◽  
Mark Goh ◽  
Xinguo Ming
Author(s):  
JIYE LIANG ◽  
ZHONGZHI SHI

Rough set theory is a relatively new mathematical tool for use in computer applications in circumstances which are characterized by vagueness and uncertainty. In this paper, we introduce the concepts of information entropy, rough entropy and knowledge granulation in rough set theory, and establish the relationships among those concepts. These results will be very helpful for understanding the essence of concept approximation and establishing granular computing in rough set theory.


2013 ◽  
Vol 416-417 ◽  
pp. 1399-1403 ◽  
Author(s):  
Zhi Cai Shi ◽  
Yong Xiang Xia ◽  
Chao Gang Yu ◽  
Jin Zu Zhou

The discretization is one of the most important steps for the application of Rough set theory. In this paper, we analyzed the shortcomings of the current relative works. Then we proposed a novel discretization algorithm based on information loss and gave its mathematical description. This algorithm used information loss as the measure so as to reduce the loss of the information entropy during discretizating. The algorithm was applied to different samples with the same attributes from KDDcup99 and intrusion detection systems. The experimental results show that this algorithm is sensitive to the samples only for parts of all attributes. But it dose not compromise the effect of intrusion detection and it improves the response performance of intrusion detection remarkably.


2013 ◽  
Vol 694-697 ◽  
pp. 2905-2909
Author(s):  
Hua Yan

Rough set theory has found an increasingly wide utilization since it was promoted in 1980s.And study on the application of rough set theory in every field has a great development in recent years. Application of rough set theory in attribute reduction, continuous attributes discretization, and uncertainty measuring, as well as application of information entropy in rough set theory are reviewed in this paper. What we will do next is to probe further into the application of information entropy in rough set theory.


2014 ◽  
Vol 19 (7) ◽  
pp. 1997-2010 ◽  
Author(s):  
Junyang Zhao ◽  
Zhili Zhang ◽  
Chongzhao Han ◽  
Zhaofa Zhou

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