Host: Japan Society for Fuzzy Theory and Intelligent Informatics (SOFT)
Name : 37th Fuzzy System Symposium
Number : 37
Location : [in Japanese]
Date : September 13, 2021 - September 15, 2021
In order to model preference relation from data sets, dominance-based rough set approach (DRSA) was proposed. In the setting of DRSA, classification involving a preference order is expressed by criteria, and the inconsistency in the classification is modeled by approximations of the theory of rough sets. In variable precision DRSA (VP-DRSA), a certain degree of the inconsistency is tolerated based on a given threshold. However, a method to determine an appropriate value of the threshold is not developed. The approximations of VP-DRSA can be interpreted by empirical risk minimization. In this paper, we study a threshold adjusting method based on that interpretation.
