《计算机应用》唯一官方网站 ›› 2023, Vol. 43 ›› Issue (3): 700-705.DOI: 10.11772/j.issn.1001-9081.2022020216

• 人工智能 • 上一篇    下一篇

基于图神经网络和注意力的双模态情感识别方法

李路宝1,2(), 陈田1,2, 任福继3, 罗蓓蓓1,2   

  1. 1.合肥工业大学 计算机与信息学院, 合肥 230601
    2.情感计算与先进智能机器安徽省重点实验室(合肥工业大学), 合肥 230601
    3.德岛大学 理工学部, 德岛 770? 8506, 日本
  • 收稿日期:2022-02-28 修回日期:2022-04-28 接受日期:2022-04-29 发布日期:2022-08-16 出版日期:2023-03-10
  • 通讯作者: 李路宝
  • 作者简介:李路宝(1992—),男,安徽芜湖人,硕士研究生,CCF会员,主要研究方向:情感计算、人工智能
    陈田(1974—),女,安徽合肥人,副教授,博士,CCF高级会员,主要研究方向:情感计算、人工智能
    任福继(1959—),男,四川南充人,教授,博士,主要研究方向:情感计算、人工智能
    罗蓓蓓(1999—),女,安徽合肥人,硕士研究生,主要研究方向:情感计算。
  • 基金资助:
    国家自然科学基金资助项目(61432004)

Bimodal emotion recognition method based on graph neural network and attention

Lubao LI1,2(), Tian CHEN1,2, Fuji REN3, Beibei LUO1,2   

  1. 1.School of Computer Science and Information Engineering,Hefei University of Technology,Hefei Anhui 230601,China
    2.Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine (Hefei University of Technology),Hefei Anhui 230601,China
    3.Faculty of Engineering,Tokushima University,Tokushima 770? 8506,Japan
  • Received:2022-02-28 Revised:2022-04-28 Accepted:2022-04-29 Online:2022-08-16 Published:2023-03-10
  • Contact: Lubao LI
  • About author:CHEN Tian, born in 1974, Ph. D., associate professor. Her research interests include affective computing, artificial intelligence.
    REN Fuji, born in 1959, Ph. D., professor. His research interests include affective computing, artificial intelligence.
    LUO Beibei, born in 1999, M. S. candidate. Her research interests include affective computing.
  • Supported by:
    National Natural Science Foundation of China(61432004)

摘要:

针对生理信号情感识别问题,提出一种基于图神经网络(GNN)和注意力的双模态情感识别方法。首先,使用GNN对脑电(EEG)信号进行分类;然后,使用基于注意力的双向长短期记忆(Bi-LSTM)网络对心电(ECG)信号进行分类;最后,通过Dempster-Shafer证据理论融合EGG和ECG分类结果,从而提高情感识别任务的综合性能。为验证所提方法的有效性,邀请20名受试者参与情感激发实验,并收集了受试者的EGG、ECG信号。实验结果表明,所提方法的二分类准确率在valence维度和arousal维度分别为91.82%和88.24%,相较于单模态EEG方法分别提高2.65%和0.40%,相较于单模态ECG方法分别提高19.79%和24.90%。可见,所提方法能够有效地提高情感识别的准确率,为医疗诊断等领域提供决策支持。

关键词: 情感识别, 多模态, 脑电, 心电, 图神经网络, 注意力

Abstract:

Considering the issues of physiological signal emotion recognition, a bimodal emotion recognition method based on Graph Neural Network (GNN) and attention was proposed. Firstly, the GNN was used to classify ElectroEncephaloGram (EEG) signals. Secondly, an attention-based Bi-directional Long Short-Term Memory (Bi-LSTM) network was used to classify ElectroCardioGram (ECG) signals. Finally, the results of EEG and ECG classification were fused by Dempster-Shafer evidence theory, thus improving the comprehensive performance of the emotion recognition task. To verify the effectiveness of the proposed method, 20 subjects were invited to participate in the emotion elicitation experiment, and the EEG signals and ECG signals of the subjects were collected. Experimental results show that the binary classification accuracies of the proposed method are 91.82% and 88.24% in the valence dimension and arousal dimension, respectively, which are 2.65% and 0.40% higher than those of the single-modal EEG method respectively, and are 19.79% and 24.90% higher than those of the single-modal ECG method respectively. It can be seen that the proposed method can effectively improve the accuracy of emotion recognition and provide decision support for medical diagnosis and other fields.

Key words: emotion recognition, multimodal, ElectroEncephaloGram (EEG), ElectroCardioGram (ECG), Graph Neural Network (GNN), attention

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