METHOD AND APPARATUS FOR SPEECH RECOGNITION BY USING DOMAIN ONTOLOGY

摘要

PURPOSE: A method and a device for voice recognition using domain ontology are provided to build a domain ontology of voice recognition target and generate voice recognition grammar applying the built domain ontology and recognize voice through the voice recognition grammar, thereby improving performance of voice recognition device. CONSTITUTION: If a voice signal is inputted through a mike, a feature extraction unit extracts specific vector of a frame unit from the voice signal(S401). A sound model unit provides voice model to a voice recognition unit through modeling the signal characteristic of the voice signal(S403). The voice recognition unit performs voice recognition through a voice model, a voice recognition dictionary(S405), and voice recognition grammar(S407)(S409).