Abstract
MT System is the generic name for a set of methodologies developed by Dr. Gen-ichi Taguchi for the purpose of anomaly detection and prediction.
Dr. Taguchi has proposed various methods of MT systems based on his rich insight. On the other hand, the methods were widely used without sufficient explanation of their theoretical basis and points to be noted. Each method of the MT system is a statistical methodology based on observational data and can be theoretically examined within the framework of conventional statistics.Careful reading of Dr. Taguchi’s paper also allows us to find features and points of caution in their use.
This paper describes the characteristics, cautions, and basic mathematical properties of each of the MT system methods that the authors have studied. In particular, MT, RT, and T methods will be explained, and the issues of multicollinearity and units will be discussed as related topics.
