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학술지 Automatic Depression Detection Using Smartphone-Based Text-Dependent Speech Signals: Deep Convolutional Neural Network Approach
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저자
김아영, 장은혜, 이승환, 최광연, 박전규, 신현출
발행일
202301
출처
Journal of Medical Internet Research, v.25, pp.1-17
ISSN
1438-8871
출판사
JMIR PUBLICATIONS, INC
DOI
https://dx.doi.org/10.2196/34474
초록
Background: Automatic diagnosis of depression based on speech can complement mental health treatment methods in the future. Previous studies have reported that acoustic properties can be used to identify depression. However, few studies have attempted a large-scale differential diagnosis of patients with depressive disorders using acoustic characteristics of non-English speakers. Objective: This study proposes a framework for automatic depression detection using large-scale acoustic characteristics based on the Korean language. Methods: We recruited 153 patients who met the criteria for major depressive disorder and 165 healthy controls without current or past mental illness. Participants' voices were recorded on a smartphone while performing the task of reading predefined text-based sentences. Three approaches were evaluated and compared to detect depression using data sets with text-dependent read speech tasks: conventional machine learning models based on acoustic features, a proposed model that trains and classifies log-Mel spectrograms by applying a deep convolutional neural network (CNN) with a relatively small number of parameters, and models that train and classify log-Mel spectrograms by applying well-known pretrained networks. Results: The acoustic characteristics of the predefined text-based sentence reading automatically detected depression using the proposed CNN model. The highest accuracy achieved with the proposed CNN on the speech data was 78.14%. Our results show that the deep-learned acoustic characteristics lead to better performance than those obtained using the conventional approach and pretrained models. Conclusions: Checking the mood of patients with major depressive disorder and detecting the consistency of objective descriptions are very important research topics. This study suggests that the analysis of speech data recorded while reading text-dependent sentences could help predict depression status automatically by capturing the characteristics of depression. Our method is smartphone based, is easily accessible, and can contribute to the automatic identification of depressive states.
KSP 제안 키워드
Acoustic characteristics, Acoustic properties, Automatic diagnosis, CNN model, Convolution neural network(CNN), Data sets, Deep convolutional neural networks, Depression detection, Healthy controls, Korean language, Major depressive disorder(MDD)
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