A Model of Knowledge-Based Health Dialogue System With VoiceXML
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VoiceXML enables the building of dialogue systems that users can interact with through the use of dual tone multi frequency (DTMF) key input and speech. The VoiceXML standard features output of synthesized speech, output of audio files, recognition of spoken input, recognition of dual tone multi frequency (DTMF) key input, recording of spoken input, but none of natural language understanding (NLU), natural language generation (NLG) and natural language knowledge representation. The standard does not also support building expert or knowledge-based systems. Although previous work have successfully integrated intelligent components into VoiceXML-based systems to make them intelligent to handle NLU and NLG, this paper investigated the viability of integrating intelligent component technologies suitable for knowledge-based systems into VoiceXML-based systems. In achieving the objective of the work, the paper proposes integration of Java expert system shell into health dialogue system to enable the building of expert system for diagnosis of diseases. The results showed that it is possible to build knowledge-based systems with VoiceXML.
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QA75 Electronic computers. Computer science