Excursive Measurement and Analysis of Normal Cloud Concept
Xu Chang · 2014
Cloud model integrates fuzziness and randomness of the qualitative concepts in the natural language,and realizes the mutual transformation between concept's intension and extension by forward cloud transformation and backward cloud transformation.The normal cloud based on normal distribution and Gaussian membership function has universality.In this paper,an excursive measurement based on outer envelope curve of normal cloud concept was defined by KL divergence,which is a non-symmetric measure of the difference between two probability distributions.Finally,based on the characteristics of human cognition,some simulation experiments were designed to study and analyze the excursion during the process of concepts' cognition in a calculation way.