Membership function data preparation method and an apparatus thereof and an adaption degree operation method and an apparatus thereof

摘要

There is provided an improved system wherein a storage capacity for storing membership functions is reduced. In the system, a plurality of sections T11 through T16 are set having boundaries at vertexes or tops where the respective grades of a plurality of membership functions MF11 through MF17 become the maxim values. In each section, a pair of adjacent membership functions are set to be in an overlapping relationship and symmetrical with respect to a center of the section about their shapes. Coordinates X11 through X17 of the respective vertexes and gradient data g11 through g16 providing shapes of membership functions in the respective sections are set as the data providing the plurality of membership functions.