CauSkelNet: Causal Representation Learning for Human Behaviour Analysis

• URL: http://arxiv.org/abs/2409.15564v2
• Date: Fri, 27 Sep 2024 08:40:26 GMT
• Title: CauSkelNet: Causal Representation Learning for Human Behaviour Analysis
• Authors: Xingrui Gu, Chuyi Jiang, Erte Wang, Zekun Wu, Qiang Cui, Leimin Tian, Lianlong Wu, Siyang Song, Chuang Yu,
• Abstract summary: This study introduces a novel representation learning method based on causal inference to better understand human joint dynamics and complex behaviors. Our approach advances human motion analysis and paves the way for more adaptive intelligent healthcare solutions.
• Score: 6.880536510094897
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Constrained by the lack of model interpretability and a deep understanding of human movement in traditional movement recognition machine learning methods, this study introduces a novel representation learning method based on causal inference to better understand human joint dynamics and complex behaviors. We propose a two-stage framework that combines the Peter-Clark (PC) algorithm and Kullback-Leibler (KL) divergence to identify and quantify causal relationships between joints. Our method effectively captures interactions and produces interpretable, robust representations. Experiments on the EmoPain dataset show that our causal GCN outperforms traditional GCNs in accuracy, F1 score, and recall, especially in detecting protective behaviors. The model is also highly invariant to data scale changes, enhancing its reliability in practical applications. Our approach advances human motion analysis and paves the way for more adaptive intelligent healthcare solutions.

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