A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG

Electroencephalography (EEG)-based emotion recognition technologies can effectively help robots to perceive human behavior, which have attracted extensive attention in human–machine interaction (HMI). Due to the complexity of EEG data, current researchers tend to extract different types of hand-craf...

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Main Authors: Zhipeng Zhang, Liyi Zhang
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/3/1954
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author Zhipeng Zhang
Liyi Zhang
author_facet Zhipeng Zhang
Liyi Zhang
author_sort Zhipeng Zhang
collection DOAJ
description Electroencephalography (EEG)-based emotion recognition technologies can effectively help robots to perceive human behavior, which have attracted extensive attention in human–machine interaction (HMI). Due to the complexity of EEG data, current researchers tend to extract different types of hand-crafted features and connect all frequency bands for further study. However, this may result in the loss of some discriminative information of frequency band combinations and make the classification models unable to obtain the best results. In order to recognize emotions accurately, this paper designs a novel EEG-based emotion recognition framework using complementary information of frequency bands. First, after the features of the preprocessed EEG data are extracted, the combinations of all the adjacent frequency bands in different scales are obtained through permutation and reorganization. Subsequently, the improved classification method, homogeneous-collaboration-representation-based classification, is used to obtain the classification results of each combination. Finally, the circular multi-grained ensemble learning method is put forward to re-exact the characteristics of each result and merge the machine learning methods and simple majority voting for the decision fusion. In the experiment, the classification accuracies of our framework in arousal and valence on the DEAP database are 95.09% and 94.38% respectively, and that in the four classification problems on the SEED IV database is 96.37%.
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spelling doaj.art-b592bc8667a2402fac48aa8e239f0f052023-11-16T16:12:39ZengMDPI AGApplied Sciences2076-34172023-02-01133195410.3390/app13031954A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEGZhipeng Zhang0Liyi Zhang1School of Information and Management, Wuhan University, No. 16, Luojiashan Road, Wuchang District, Wuhan 430072, ChinaSchool of Information and Management, Wuhan University, No. 16, Luojiashan Road, Wuchang District, Wuhan 430072, ChinaElectroencephalography (EEG)-based emotion recognition technologies can effectively help robots to perceive human behavior, which have attracted extensive attention in human–machine interaction (HMI). Due to the complexity of EEG data, current researchers tend to extract different types of hand-crafted features and connect all frequency bands for further study. However, this may result in the loss of some discriminative information of frequency band combinations and make the classification models unable to obtain the best results. In order to recognize emotions accurately, this paper designs a novel EEG-based emotion recognition framework using complementary information of frequency bands. First, after the features of the preprocessed EEG data are extracted, the combinations of all the adjacent frequency bands in different scales are obtained through permutation and reorganization. Subsequently, the improved classification method, homogeneous-collaboration-representation-based classification, is used to obtain the classification results of each combination. Finally, the circular multi-grained ensemble learning method is put forward to re-exact the characteristics of each result and merge the machine learning methods and simple majority voting for the decision fusion. In the experiment, the classification accuracies of our framework in arousal and valence on the DEAP database are 95.09% and 94.38% respectively, and that in the four classification problems on the SEED IV database is 96.37%.https://www.mdpi.com/2076-3417/13/3/1954electroencephalogramemotion recognitionhomogeneous collaboration representationcircular multi-grained scanningensemble learning
spellingShingle Zhipeng Zhang
Liyi Zhang
A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
Applied Sciences
electroencephalogram
emotion recognition
homogeneous collaboration representation
circular multi-grained scanning
ensemble learning
title A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
title_full A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
title_fullStr A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
title_full_unstemmed A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
title_short A Two-Step Framework to Recognize Emotion Using the Combinations of Adjacent Frequency Bands of EEG
title_sort two step framework to recognize emotion using the combinations of adjacent frequency bands of eeg
topic electroencephalogram
emotion recognition
homogeneous collaboration representation
circular multi-grained scanning
ensemble learning
url https://www.mdpi.com/2076-3417/13/3/1954
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