arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.12055cs.LG
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基于AsMap的自动特征提取用于EEG的情绪分类

Automated Feature Extraction on AsMap for Emotion Classification using EEG

National Institute of Technology, Silchar(锡尔查国家理工学院);University of Calgary(卡尔加里大学)

Md. Zaved Iqubal Ahmed, Nidul Sinha, Souvik Phadikar, Ebrahim Ghaderpour

摘要:

为了解决情感计算所面临的挑战,人们已经广泛地研究了使用EEG的情感识别。对EEG信号使用手动特征提取方法导致学习模型的次优性能。随着深度学习作为自动化特征工程工具的进步,在这项工作中,提出了一种手动和自动特征提取方法的混合。在不同的大脑区域的不对称性被捕获在一个二维矢量,称为AsMap,从EEG信号的微分熵特征。这些AsMap然后用于使用卷积神经网络模型自动提取特征。将所提出的特征提取方法与微分熵及其他特征提取方法如相对不对称、微分不对称和微分尾度进行了比较。利用SJTU情绪EEG数据集和DEAP数据集对基于类数的不同分类问题进行了实验。实验结果表明,所提出的特征提取方法具有较高的分类精度,优于其他特征提取方法。利用上海交通大学的情绪脑电数据集,在一个三类分类问题上取得了97.10%的最高分类准确率。此外,这项工作还评估了窗口大小对分类精度的影响。

英文摘要:

Emotion recognition using EEG has been widely studied to address the challenges associated with affective computing. Using manual feature extraction methods on EEG signals results in sub-optimal performance by the learning models. With the advancements in deep learning as a tool for automated feature engineering, in this work, a hybrid of manual and automatic feature extraction methods has been proposed. The asymmetry in different brain regions is captured in a 2D vector, termed the AsMap, from the differential entropy features of EEG signals. These AsMaps are then used to extract features automatically using a convolutional neural network model. The proposed feature extraction method has been compared with differential entropy and other feature extraction methods such as relative asymmetry, differential asymmetry and differential caudality. Experiments are conducted using the SJTU emotion EEG dataset and the DEAP dataset on different classification problems based on the number of classes. Results obtained indicate that the proposed method of feature extraction results in higher classification accuracy, outperforming the other feature extraction methods. The highest classification accuracy of 97.10% is achieved on a three-class classification problem using the SJTU emotion EEG dataset. Further, this work has also assessed the impact of window size on classification accuracy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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