OPS5 - Charles L. Forgy. 1977 version of OPS[2], publicly available from
the author. First implemented in Lisp, later in BLISS.
"Programming Expert Systems in OPS5", L. Brownston et al, A-W 1985. "An
OPS5 Primer", Sherman et al, comes with OPS5 for DOS. Other versions:
OPS4, OPS5+, OPS83. Inference Engine Tech, Cambridge MA.
ftp://wuarchive.wustl.edu/mirrors/unix-c/languages/ops5 an OPS5 interpreter
in Common LISP.
C5 - An OPS5 implementation in C. "Rule-Based Programming in the Unix
System", G.T. Vesonder, AT&T Tech J 67(1), 1988.
Comments, Experience, Additions
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