A gradient-based lightweight network automated design method for facial expression recognition

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Jiahao Fan, Shuchao Deng, Xiaotian Song, Jiyuan Liu, Yanan Sun

Published: 01 Jan 2026, Last Modified: 23 Sept 2025Expert Syst. Appl. 2026EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Proposed a neural architecture search method for facial expression recognition.•Proposed a channel sampling process strategy to enhance search stability.•The automatically designed neural network is lightweight.•The proposed neural network outperformed state-of-the-art methods.