State of the art on ChatPPG

#1 on WISDM Activity recognition

0.741Macro F1 (higher is better)

Method: ActiNet
Reported in: ActiNet: an open-source tool for activity intensity classification of wrist-worn accelerometry using self-supervised deep learning · Table 2
Compared: 2 results under the same protocol; runner-up Random forest + HMM (accelerometer package) 0.679
Protocol: activity intensity · whole dataset as external test · cross-dataset (trained on CAPTURE-24) · fine-tuned + HMM smoothing · 30 s windows

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SOTA on ChatPPG: Activity recognition · WISDM

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Results as reported by the authors; not independently reproduced. Awarded 2026-10-20; re-checked on every atlas sync.