Page 98 - Intelligent Communication Systems
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CHAPTER 8 / INTELLIGENT COMMUNICATION  SYSTEMS  81







































        FIGURE 8. i  Hierarchical structure of intelligent communication system.



        provides speech-to-character conversion, sentence-to-image conversion, and vice
        versa.



        83  STRUCTURE OF THE     KNOWLEDGE-BASE       SYSTEM

        The knowledge-base  system provides problem-solving  facilities by using domain
        knowledge stored in a knowledge base. As shown in Figure 8.2, the  knowledge-base
        system comprises a knowledge base, an inference engine, an inference process exp-
        lanation module, a knowledge-base editor, and a human-machine  interface module.
            •  The  knowledge  base  stores  domain  knowledge  for  problem  solving.  For
        example,  in  order  to construct  a knowledge-base  system for medical  diagnosis,
        information about a disease and its symptoms is input. This is domain knowledge
        for  medical diagnosis.
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