Self-Organizing Map That Can Input Possibility Distributions -Improvement of Distance Calculation-

Abstract

SOM(Self-Organizing Map) by T.\ Kohonen is one of methods for classifying automatically data of multi attributes. This method is only applicable to numeric data but not ambiguous data. We expressed ambiguous data as possibility distributions and proposed the SOM that can input possibility distributions. We improve the definition of the distance between two triangular type possibility distributions and compare the methods.