Construction of classroom teaching evaluation model based on machine learning facilitated facial expression recognition

This study proposes a machine learning (ML) framework to overcome emotion recognition challenges in classroom environments, where high facial expression similarity and complex postural backgrounds hinder the accurate analysis. First, the histogram of oriented gradients (HOGs) was used to extract sev...

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Bibliographic Details

Published in:	Journal of Intelligent Systems
Main Authors:	Ge Dongdong, Zhang Zhendong
Format:	Article
Language:	English
Published:	De Gruyter 2025-09-01
Subjects:	facial expression recognition machine learning support vector machine optimization teaching evaluation model
Online Access:	https://doi.org/10.1515/jisys-2024-0453