Host: Japan Society for Fuzzy Theory and Intelligent Informatics (SOFT)
Recently the analysis method of Rough Sets came to be applied for the investigation for making design plans of the new products. So, it has been shown that the method of extracting Decision classes for Rough Sets were very important. Therefore, we suggested the new inferential method of Decision classes with a simple calculation method of Attribute Reduction in Variable Precision Rough Set Models proposed by Ziarko. Moreover, we suggested the new squeezing method of Decision classes in the conclusion of Decision table by the method of considering the simple calculation method of Attribute Reduction with Lower-approximation by Kudo and Murai.
