Abstract
A fuzzy regression model is to illustrate the potential possibilities inherent in the target system by including the whole data. In the other words, in this model, the possibility is represented by an interval so that the interval includes the whole data observed from the focal system. In addition, the pivotal role of the system is emphasized in building a fuzzy regression model instead of employing an interval to describe the possibility of a focal system. Tanaka and Guo employ exponential possibility distribution to build a model, while Inuiguchi et al. and Tajima are independently working on coinciding between both the centers of possibility distribution and the center of a fuzzy regression model.
It is most characteristic that samples influence and distort the shape of the model, if the samples are separated far from the center of data. Yabuuchi and Watada proposed a model to describe the system possibility using the center of a fuzzy regression model and an approach that mends the distortion of the model.
The objective of this paper is to analyze Japanese economy by using our model, and to show the usefulness of the model by indicating its characteristics.
