모바일 혁명과 빅데이터(big data) 시대에 접어들면서 사용자 중심의 자연스러운 인터페이스와 정보 검색에 대한 요구가 늘어가고 있다. 모바일 환경에서의 쉽고 자연스러운 검색을 위해 음성인식 기술을 이용한 음성검색 서비스가 대세를 이루고 있으며 대화형 검색 서비스로 발전하게 될 것이다. 음성 대화 서비스의 주요 응용 분야인 음성검색 및 외국어 교육 서비스에서의 자연어 음성인식 기술 역할 및 사용자 경험을 바탕으로 하는 선순환 구조의 인식 성능 개선에 대해 소개한다. 또한 두 응용분야에서의 국내외 개발동향을 소개하고 실제 개발 사례를 통해 무제한급 자연어 음성인식 기술에 기반한 음성 대화 서비스의 가능성을 살펴본다.
KSP Keywords
Big-data
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