The Impact of Attention Mechanisms on Speech Emotion Recognition

Speech emotion recognition (SER) plays an important role in real-time applications of human-machine interaction. The Attention Mechanism is widely used to improve the performance of SER. However, the applicable rules of attention mechanism are not deeply discussed. This paper discussed the differenc...

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Main Authors: Shouyan Chen, Mingyan Zhang, Xiaofen Yang, Zhijia Zhao, Tao Zou, Xinqi Sun
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/22/7530
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author Shouyan Chen
Mingyan Zhang
Xiaofen Yang
Zhijia Zhao
Tao Zou
Xinqi Sun
author_facet Shouyan Chen
Mingyan Zhang
Xiaofen Yang
Zhijia Zhao
Tao Zou
Xinqi Sun
author_sort Shouyan Chen
collection DOAJ
description Speech emotion recognition (SER) plays an important role in real-time applications of human-machine interaction. The Attention Mechanism is widely used to improve the performance of SER. However, the applicable rules of attention mechanism are not deeply discussed. This paper discussed the difference between Global-Attention and Self-Attention and explored their applicable rules to SER classification construction. The experimental results show that the Global-Attention can improve the accuracy of the sequential model, while the Self-Attention can improve the accuracy of the parallel model when conducting the model with the CNN and the LSTM. With this knowledge, a classifier (CNN-LSTM×2+Global-Attention model) for SER is proposed. The experiments result show that it could achieve an accuracy of 85.427% on the EMO-DB dataset.
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spelling doaj.art-9c6f6ffb5d894251a31c7913baf9b5152023-11-23T01:24:55ZengMDPI AGSensors1424-82202021-11-012122753010.3390/s21227530The Impact of Attention Mechanisms on Speech Emotion RecognitionShouyan Chen0Mingyan Zhang1Xiaofen Yang2Zhijia Zhao3Tao Zou4Xinqi Sun5School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSpeech emotion recognition (SER) plays an important role in real-time applications of human-machine interaction. The Attention Mechanism is widely used to improve the performance of SER. However, the applicable rules of attention mechanism are not deeply discussed. This paper discussed the difference between Global-Attention and Self-Attention and explored their applicable rules to SER classification construction. The experimental results show that the Global-Attention can improve the accuracy of the sequential model, while the Self-Attention can improve the accuracy of the parallel model when conducting the model with the CNN and the LSTM. With this knowledge, a classifier (CNN-LSTM×2+Global-Attention model) for SER is proposed. The experiments result show that it could achieve an accuracy of 85.427% on the EMO-DB dataset.https://www.mdpi.com/1424-8220/21/22/7530artificial intelligencespeech emotion recognitionattention mechanismneural networks
spellingShingle Shouyan Chen
Mingyan Zhang
Xiaofen Yang
Zhijia Zhao
Tao Zou
Xinqi Sun
The Impact of Attention Mechanisms on Speech Emotion Recognition
Sensors
artificial intelligence
speech emotion recognition
attention mechanism
neural networks
title The Impact of Attention Mechanisms on Speech Emotion Recognition
title_full The Impact of Attention Mechanisms on Speech Emotion Recognition
title_fullStr The Impact of Attention Mechanisms on Speech Emotion Recognition
title_full_unstemmed The Impact of Attention Mechanisms on Speech Emotion Recognition
title_short The Impact of Attention Mechanisms on Speech Emotion Recognition
title_sort impact of attention mechanisms on speech emotion recognition
topic artificial intelligence
speech emotion recognition
attention mechanism
neural networks
url https://www.mdpi.com/1424-8220/21/22/7530
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