Author

Jingjing Zou

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#machine learning Preprint Oct 2026

W-JEPA: Wavelet Joint-Embedding Predictive Architecture for Wearable Activity Recognition

A major challenge in wearable device activity recognition is the heterogeneity across datasets in sensor placement, channel count, sampling rate and subjects. Moreover, the motion patterns that distinguish activities often appear as subtle, scale-specific variations within otherwise similar waveforms. As a result, raw...

Yogesh Prabhu, L. Natarajan, Jing-Jing Zou · 0 citations

Preprint Aug 2026

Sedentary Behavior Classification for Wearable Sensors with a CNN-BiLSTM Model

It is suggested that hip-based pretraining provides a useful starting point for wrist deployment, while highlighting the need for wrist-specific adaptation to handle higher signal variability.

Yu-Liang Chen, Weiwei Shi, Jingjing Zou et al. · 0 citations