Research on an Expert System for Trade-Cost Computing
Yuji MATSUDA, Masaaki INAISHI, Akio M. SUGISAKI · The Journal of Japan Institute of Navigation · 1990
The import and export trade of our country has been developed so remarkably. The tremendous amount and the immense variety of the freight to be dealt with have necessarity brought about the increment of complicated trading operations and jobs. To cope with the difficult situation, the systematization in every field of international trade has been projected and realized ardently, though it is far from being completed for the present. This system consists of 4 functions: Knowledge Base, Inference Engine, User Interface and Working Area. Knowledge Base is the data on files which is represented by retrieved knowledges. Insurance Engine is a set of functions written in C language. Interface gives facilities for input-output between the system and user, and Working Area is used for maintaining the data. A study examines the possibility of introducing 'expert system' into the estimation of trade cost. The summary results of the study are shown below. (1) The steps of trade cost computation are analysed functionally and thereby the functions relevant to the systematization are revealed. (2) The pieces of the knowledge acquired with regard to the jobs are classified and reorganized according to their conceptually hierarchical order. (3) 'Frame' proves efficient for the representation of the acquired knowledge. (4) The Infelence engine can be constructed which is most adapted for the representation of the knowledge. (5) The Inference engine is detached completely from the knowledge base.