JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2022, Vol. 57 ›› Issue (8): 13-20.doi: 10.6040/j.issn.1671-9352.7.2021.146

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Bernoulli shift of decision evolution set

HU Yu-wen1,2,3, XU Jiu-cheng1,2, XU Tian-he1,2   

  1. 1. College of Computer and Information Engineering, Henan Normal University, Xinxiang 453007, Henan, China;
    2. Henan Engineering and Technology Laboratory of Smart Business and Internet of Things, Xinxiang 453007, Henan, China;
    3. Library, Henan Normal University, Xinxiang 453007, Henan, China
  • Online:2022-08-20 Published:2022-06-29

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Abstract: Decision evolution set is a new method to deal with evolution problem of decision rules changing in time series. Decision evolution matrix is an important concepts of decision evolution set. Through the decision evolution matrix, we can intuitively understand the performance of each conditional attribute at a single time point and a continuous time series. However, the decision evolution matrix is defined in the current system, there is still a lack of numerical quantization. In this paper, Bernoulli shift is introduced to quantify the decision evolution matrix, and an example is given to demonstrate the role of these quantized values in prediction.

Key words: rough set, decision evolution, evolution matrix, Bernoulli shift

CLC Number: 

  • TP18
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