This study attempted to link continuous and dynamic articulatory information to categorical phonological feature representations through a neural network model. The Long Short-Term Memory (LSTM) model was used in the current paper, which is a type of recurrent neural network including temporal information connections. The test results of the LSTM model mapping muscular activation into phonological features show that (i) gradient values of phonological features are derived from the degree of activation of the tongue muscles, which determines the movement and shape of the tongue, and (2) the LSTM model can systematically capture vowels' co-articulatory effect on consonants.
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Abstract 1. 서론 2. 조음 정보: 혀 근육 활성화 정도 2.1. 왜 혀 근육 활성화 정보를 음운 자질과 연결하는가? 2.2. 3D 혀 모델을 이용한 혀 근육 활성화 시뮬레이션 3. 조음 정보와 음운 자질의 연결: 신경망 모델 3.1. 모델 학습 3.2. 모델 테스트 4. 논의 4.1. 조음 정보의 음운 자질 표상: 범주 내 연속값 4.2. 시간적 변화와 동시 조음 효과 반영 5. 결론 참고문헌