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Marc Horowitz\hfill\break
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An Expert System Shell for a Parallel Processing Computer\hfill\break
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The implementation of a real-time computer system to aid human pilots
required a system to speed the processing of rules of an expert
system.  An algorithm using repeated application of forward chaining
rules across the processors of an parallel processing machine was
developed and implemented.  The final algorithm was $\cal O$(depth),
where {\em depth} is the length of the longest recursive chain.  For
typical data, with a large number of initial and final states, little
interconnection, and high fanout, this is very efficient.  Future work
will include incorporating initial data and a user interface into the
program.
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