20HS1300, Development of Human Enhancement Technology for auditory and muscle,
Shin Hyung Cheol
Abstract
본 논문에서는 음향 이벤트 검출을 위한 심층 신경망에 대한 연구를 진행하였다. 특히 약하게 표기된 데이터 및 표기되지 않은 훈련 데이터를 포함하는 약지도 문제에 대하여, 입력 오디오 파형으로부터 이벤트 검출 결과를 얻어 내는 종단간 신경망을 구축하는 연구를 진행하였다. 본 연구에서 제안하는 시스템은 1차원 콘볼루션 신경망을 깊게 적층하는 구조를 기반으로 하였으며, 도약 연결 및 게이팅 메커니즘 등의 추가적인 구조를 통해 성능을 개선하였다. 또한 음향 구간 검출 및 후처리를 통하여 성능을 향상시켰으며, 약지도 데이터를 다루기 위하여 평균-교사 모델을 적용 하여 학습하는 과정을 도입하였다. 본 연구에서 고안된 시스템을 Detection and Classification of Acoustic Scenes and Events(DCASE) 2019 Task 4 데이터를 이용하여 평가하였으며, 그 결과 약 54 %의 구간-기반 F1-score 및 32 %의 이벤트-기반 F1-score를 얻을 수 있었다.
KSP Keywords
F1-score, detection and classification
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