抄録
AIC is an information criterion derived by Dr. Hirotugu Akaike in 1973. His research is the
beginning of research on criterion for model selection. In many area of science and technology such as
geophysics, life science, economics and engineering, the AIC is used. For this research, Akaike has recieved
Asahi Award, the Kyoto Prize, the purple medal. AIC is worthy to call it a treasure.