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Electroencephalogram emotion recognition method based on multi-task capsule

An emotion recognition and multi-tasking technology, applied in the field of emotion computing, can solve problems such as failure to achieve recognition rate, decrease in EEG recognition accuracy, and does not take into account the sharing of complementary information of EEG signals, so as to achieve the effect of improving the accuracy of emotion recognition

Active Publication Date: 2021-12-07
HEFEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0005] At present, most of the end-to-end emotion recognition methods based on deep learning are single-task learning to extract the features of EEG signals, and the existing deep learning methods are all based on single-task learning, but this method cannot consider EEG. The relevant information between all tasks of the signal, of course, does not take into account the sharing of complementary information between the tasks of the EEG signal, which reduces the accuracy of EEG recognition, so the expected recognition rate cannot be achieved

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  • Electroencephalogram emotion recognition method based on multi-task capsule
  • Electroencephalogram emotion recognition method based on multi-task capsule
  • Electroencephalogram emotion recognition method based on multi-task capsule

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Embodiment Construction

[0037] In this embodiment, a multi-task capsule-based EEG signal emotion recognition method first mainly uses the shared information of multi-task learning to improve the recognition accuracy of each task, and secondly uses the channel attention mechanism to extract the channel information in the original EEG signal, Finally, the capsule network (Capsule Network) is used to extract the spatiotemporal information in the encoded samples, and finally obtain the rich features of the EEG signal to achieve classification. The specific process is as follows: figure 1 As shown, proceed as follows:

[0038]Step 1. First, take the EEG signal data of any subject B with L emotional labels, that is, there are L emotional tasks and each emotional label has q types (0 or 1), and perform preprocessing, Including de-baseline and sample segmentation, so as to obtain N EEG signal samples of subject B, denoted as S={S 1 ,S 2 ,...,S k ,...,S N}, where S k ∈R m×P Indicates the kth EEG signal ...

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Abstract

The invention discloses an electroencephalogram emotion recognition method based on multi-task learning. The electroencephalogram emotion recognition method comprises the steps of 1, preprocessing of baseline removal and fragment segmentation on original EEG data; 2, establishing a multi-task learning model; 3, performing channel attention processing on the original EEG signal; 4, constructing a multi-task capsule network model; 5, training the established multi-task capsule network model on a public data set by adopting a ten-fold crossing method; and 6, realizing an emotion classification task by utilizing the established model. According to the invention, high-precision emotion recognition can be realized, so that the recognition rate is improved.

Description

technical field [0001] The invention relates to the field of emotion computing, in particular to a multi-task-based EEG signal emotion recognition method. Background technique [0002] Emotion is an indispensable part of people's daily life, and emotion recognition is also a key technology in the field of artificial intelligence. There are many kinds of research applied to emotion recognition. People’s emotions are commonly judged by facial expressions, language, and body movements. Among them, there are real-time differences in the electroencephalogram (EEG) chamber, but it is different from human emotional states. There is close connection, so the present invention adopts the emotion recognition research method based on EEG signal. EEG emotion recognition algorithms are mainly divided into two categories: traditional algorithms and algorithms based on deep learning. [0003] In traditional algorithms for emotion recognition based on EEG signals, features are usually extr...

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Application Information

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IPC IPC(8): A61B5/16A61B5/369G06K9/62G06N3/04G06N3/08
CPCG06N3/084A61B5/165A61B5/369A61B5/7267A61B5/7235G06N3/045G06F18/2415Y02D30/70
Inventor 李畅王彬刘羽成娟宋仁成陈勋
Owner HEFEI UNIV OF TECH
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