Title :
EXPERT ESSENCE: a new expert shell with automatic rule relaxation
Author :
Nakakuki, Y. ; Fujita, Tomoyulci
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
An expert shell designed to meet practical design tradeoff problems is described. Unlike conventional production system approaches, the proposed system can automatically relax firing conditions of rules during the reasoning process. Metarules are introduced to represent the design expert´s knowledge on how to relax the conditions. Moreover, an automatic knowledge-base refinement mechanism is proposed. From a given set of expert designer´s reasoning examples, the system generates improved metarules. It makes possible automatic knowledge-base refinements from examples at reasonable cost. The proposed expert shell has been in experimental use for designing LSI logic
Keywords :
expert systems; EXPERT ESSENCE; LSI logic design; automatic knowledge-base refinement; automatic rule relaxation; expert shell; firing conditions; metarules; practical design tradeoff problems; reasoning; Costs; Counting circuits; Electronic circuits; Energy consumption; Laboratories; Large scale integration; Logic circuits; Logic design; National electric code; Production systems;
Conference_Titel :
Industrial Applications of Machine Intelligence and Vision, 1989., International Workshop on
Conference_Location :
Tokyo
DOI :
10.1109/MIV.1989.40549
