资料来源 : Free On-Line Dictionary of Computing

expert system
     
         A computer program that contains a
        {knowledge base} and a set of {algorithms} or rules that infer
        new facts from knowledge and from incoming data.
     
        An expert system is an {artificial intelligence} application
        that uses a knowledge base of human expertise to aid in
        solving problems.  The degree of problem solving is based on
        the quality of the data and rules obtained from the human
        expert.  Expert systems are designed to perform at a human
        expert level.  In practice, they will perform both well below
        and well above that of an individual expert.
     
        The expert system derives its answers by running the knowledge
        base through an {inference engine}, a software program that
        interacts with the user and processes the results from the
        rules and data in the knowledge base.
     
        Expert systems are used in applications such as medical
        diagnosis, equipment repair, investment analysis, financial,
        estate and insurance planning, route scheduling for delivery
        vehicles, contract bidding, counseling for self-service
        customers, production control and training.
     
        [Difference from "{knowledge-based system}"?]
     
        (1996-05-29)