형태소 해석 결과 생성되는 형태소 옅은 구문 분석을 수행하기에는 적절하지 않은 구문 단위로 구성되어 있는 경우가 많으며 이로 인해 구문 분석기가 불필요한 연산을 수행하여 과도한 구문 트리를 생성하는 원인이 된다. 따라서 본 논문에서는 한영 자동 번역의 한국어 구문 분석기 성능 향상 및 자연스러운 대역문 생성을 위하여 시간 부사구와 명사구에 대한 구묶음을 위한 구문 분석 전처리 방법을 제안하며 이를 위한 각 구 단위의 대역 패턴을 정의한다. 방송자막 및 매뉴얼 문장을 대상으로 실험한 결과, 각 문장 구문 단위를 평균적으로 26% 정도 감소시킴으로써 불필요한 파스 트리의 생성을 배제하여 구문 분석기의 성능을 향상시킬 수 있었다.
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