On Creation of Expert Knowledge Base in Information Systems of Decision Making Support

Fishburne coefficients, fuzzy knowledge, membership function. Abstract— We have considered designation and structure of the knowledge acquisition block of the expert system for technical and technological service of complex machines. The main aspects of fuzzy expert knowledge representation designated for setting parameters of the machines technological adjustment have been studied. The block of expert knowledge acquisition and representation is one of the main parts in decision making problems under uncertainty. This paper suggests the technique of fuzzy knowledge base generation based on various criteria of consistency including those, that take into account different hierarchy of expert knowledge. This technique makes it possible to determine an optimal term-set for a linguistic variable, which is required to construct a general membership function and describe input and output parameters of the system. The method was applied to the subject domain of the combine harvesting of grain.