A real-time expert system shell for process control.
Date
1990
Authors
Kang, Alan Montzy
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Abstract
A multi-layered expert system shell that specifically addresses real-time issues is
designed and implemented. The architecture of this expert system shell supports the
concepts of parallelism, concurrent computation and competitive reasoning in that it
allows several alternatives to be explored simultaneously. An inference engine driven
by a hybrid of forward and backward chanining methods is used to achieve real-time
response, and certainty factors are used for uncertainty management. Real-time
responsiveness is improved by allowing the coexistence of procedural and declarative
knowledge within the same system.
A test bed that was set up in order to investigate the performance of the implemented
shell is described. It was found in the performance analysis that the
proposed system meets the real-time requirements as specified in this research.
Description
A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand,
Johannesburg, in fulfilment of the requirements for the degree of Master of
Science in Engineering
Keywords
Expert systems (Computer science), Process control -- Computer programs., Real-time data processing., Real-time control.