Host: Japan Society for Fuzzy Theory and Intelligent Informatics (SOFT)
The liver has a lot of important functions and is needed metabolisms in the living body. The liver diseases are many signs but their diagnosing has some difficulties. For example, the diagnosis of liver diseases is needed knowledge of a great of number of blood test items (e.g. T-BiL , Alp, gamma-GTP, LDH, ChE, GPT, GOT, Plt, Alb, AFP, and so on) and of the liver diseases(Acute hepatitis, Chronic hepatitis, Liver cirrhosis, Hepatoma)under the mutual relation. Then the researchers have challenged to this problem with several computational technique. The standard distance in general is Euclid distance but The Taguchi Method using Mahalanobis distance appreciated at diagnostic support of the medical. Mahalanobis distance is a distance measure including the variation in data. SOM (Self-Organizing Map) is drowning the second dimension map which there is calculated node near parallel nodes, and a spherical SOM is modified and progressive version of original SOM. We propose a new diagnostic method for liver disease using a spherical SOM constructed by the Mahalanobis Distance. This thesis will give an examination the usefulness of the data analysis of the medical from now on.
