基于图递归神经网络的情绪识别方法研究
首发时间:2021-03-19
摘要:目前情绪识别在医疗,公共安全等领域得到了广泛的应用。本文利用图递归神经网络的相关理论,提出了基于脑电信号时空特征的图递归神经网络模型。文章首先使用了1秒的汉明窗将脑电信号划分成了样本;然后在对每个样本中不同通道的数据计算互信息值;之后将互信息值和通道一起构成图序列;最后将图序列作为模型的输入并基于唤醒度和效价度对模型的准确率等指标进行衡量。在公开的DEAP数据集上的实验结果表明,我们的模型要优于只利用了脑电信号的空间特征的模型。
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Graph Recurrent Neural Network for Emotion Recognition
Abstract:Nowadays, Emotion Recognition has been used in Medical and Public Safety field. In this paper, we propose a graph recurrent neural network model based on the temporal and spatial features of EEG signals, using the related theory of graph recurrent neural network. We first use a 1-second Hamming window to divide the EEG signals into samples; after that we calculate the mutual information for the data of the different channels in each sample; next, we combines the mutual information value and the data of different channels to form a graph sequence; finally, the graph sequence is used as the input of the model. Besides, the accuracy and other indicators of the model are measured based on arousal and valance. The experimental results on the public DEAP dataset show that our model is superior to the model that only uses the spatial correlations of EEG signals.
Keywords: EEG, Graph Recurrent Neural Network, Emotion Recognition, Mutual Information
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