Patent
1994-04-04
1996-04-09
Downs, Robert W.
G06F 1518
Patent
active
055069380
ABSTRACT:
An expert system in which a plurality of knowledge descriptive layers are provided in a frame system. Each descriptive layer is composed of several frames. The frames of the lower knowledge descriptive layer correspond to the elements of a knowledge processing object system. The content of frames of the upper knowledge descriptive layers is determined as an inference made with reference to the frames of the lower layer. This determination is initiated and executed when the content of slots of the frames is updated.
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Stelzner, et al; "The Simkit System: Knowledge-Based Simulation and Modeling Tools in KEE," Intelli Corp, Inc., 1987.
Charniak, et al; Artificial Intelligence Programming, 2nd ed., Lawrence Erlbaum Assoc., Pub., 1987, Chapt. 13.
Hu, D., Programmer's Reference Guide to Expert Systems, Howard W. Sams & Co., 1987, 123-141.
Foo, et al., "Databases and Cell-Selection Algorithms for VLSI Cell Libraries," Computer, Feb. 1990, 18-30.
Amano Masahiko
Fukui Chihiro
Harada Yasushi
Kudo Hiroyuki
Watanabe Dai
Downs Robert W.
Hitachi , Ltd.
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