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PLEASE NOTE: The Publications System provided by the Manufacturing Systems Integration Division (MSID) has moved to: http://www.mel.nist.gov/msidlibrary/publications.html. The pages below are maintained for archival purposes only.
Publication summary
Author(s): D. Nau and T. Chang
Publication date: 1986
Citation: D. Nau and T. Chang: "Hierarchical Representation of Problem Solving Knowledge in a Frame-Based Process Planning System," Journal of Intelligent Systems, 1986.
Availability:
- A paper copy of this document is available by contacting Kristy Thompson [web,email]
Abstract:
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In most frame-based reasoning systems, the information being
manipulated is represented using frames, but the problem-solving
knowledge that manipulates the frames is represented as production
rules. One problem with this approach is that rules are not always a
natural way to represent knowledge; another is that systems containing
lots of rules may suffer from problems with "exponential blow-up" in
the amount of computation required. This paper describes a way to
address these problems by organizing the problem-solving knowledge not
as rules, but in a particular kind of frame hierarchy. The approach
described in this paper has been implemented in a problem-solving
system called SIPP (Semi-Intelligent Process Planner), which produces
plans of action for the manufacture of metal parts. The paper gives
an overview of SIPP, compares its knowledge representation and problem
solving methods to approaches used in other knowledge-based systems,
and describes goals for further research.
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