MARS: A Multi-view Contrastive Approach to Human Activity Recognition from Accelerometer Sensor
IEEE Sensors Letters（2024）
摘要
In this letter, we present
MARS
, a novel approach which combines a multi-view fusion technique with contrastive loss to accurately identify human activities using accelerometer sensor data. Accelerometer sensor enables precise monitoring of human activities in diverse contexts. Our approach leverages both temporal and spectral views of accelerometer data, integrating them through an attention mechanism to enhance the overall understanding of human activities. To further improve the discriminative power of the learned representations corresponding to different activity classes, we apply a contrastive loss-based siamese network. Emprical findings confirm that
MARS
outperforms state-of-the-art on the
harAGE
dataset by a significant margin of 4.71 in unweighted average recall.
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关键词
Accelerometer Sensor,Human Activity Recognition,Multi-view Fusion,Contrastive learning
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