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Hyper-Enhanced Feature Learning System for Emotion Recognition

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Signal Processing in Medicine and Biology

Abstract

The human body as an entire structure of a person contains physiological and physical reactions that connect with emotions. Emotions can be thought of as psychological states brought on by neurophysiological changes, multifariously accompanied with thoughts, feelings, bodily responses, and a level of pleasure or displeasure. Emotions play a crucial role in our day-to-day activities, not only the way we interact with colleagues but also in our decision-making processes. Emotion recognition from multimodal signals allows a diverse and direct assessment of the innermost state of a person which is regarded an important component of human-computer interactions (HCI). HCI requires the sophisticated use of computer technology, which focuses directly on the interfaces between humans and computers with the purpose of designing technologies allowing humans and computers to interact in novel ways.

In this chapter, we discuss the proposal of a feature learning approach based on multimodal human body data for emotion recognition. We analyzed the broad learning system (BLS) algorithms and explored artificial neural network (ANN) as the deep learning method for classification. We discuss the application of a feature learning technique using a Hyper-Enhanced Learning System (HELS). Experiments are conducted on a database for emotion analysis using physiological signals (DEAP) and a multimodal database for affect and implicit tagging (MAHNOB-HCI) to evaluate the performance of these neuro-hybrid deep and enhanced structures.

We utilized five signals which include electroencephalogram (EEG), galvanic skin response (GSR), respiration (RES), electromyogram (EMG), and electrocardiograph (ECG). Signals were preprocessed to remove artifacts and noise and feature extraction is done to obtain relevant features. We then introduced the proposed feature enhancement system that generates random weights and enhances feature nodes. Training models on enhanced physiological features significantly reduce divergence. Emotions are assorted into three categories and classified based on the valence-arousal dimensional model. Obtained results show that combining physiological signals is relevant for accurate human emotion recognition task.

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Correspondence to Hayford Perry Fordson .

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© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG

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Perry Fordson, H., Xing, X., Guo, K., Xu, X., Anderson, A., DeRosa, E. (2023). Hyper-Enhanced Feature Learning System for Emotion Recognition. In: Obeid, I., Picone, J., Selesnick, I. (eds) Signal Processing in Medicine and Biology. Springer, Cham. https://doi.org/10.1007/978-3-031-21236-9_1

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  • DOI: https://doi.org/10.1007/978-3-031-21236-9_1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-21235-2

  • Online ISBN: 978-3-031-21236-9

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