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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.