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Reviews of my papers

Computing Reviews 8612-1120

Some expert systems need common sense.

Some elements of common sense appropriate for expert system are briefly
discussed.  The logical framework of a ``sensible'' program must include
plan formation, using nonmonotonic logic methods such as circumscription.
McCarthy expresses doubt that ``the facts of the common sense world can
be represented adequately by production rules''.  However, his examples
are simply cases of restricted ``world-view''.  If MYCIN's view included
the patient as a host (superset) of the bacteria, McCarthy's ``concurrent
events'' problem can be conceived of within production rules.  The need
to ``imbed'' one body of knowledge within another is mentioned, but rule
consistency problems and conceptual dependency models are not.
- J.D. Sankey, Ottawa, Ont., Canada.