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Chenyun Dai

2 papers indexed

arxivcs.HC2026-07-16

Understanding of Task-specific and Subject-specific Components in Surface EMG

Yangyang Yuan, Jionghui Liu, Xinyu Jiang, ChihHong Chou, Chenyun Dai, Jiahao Fan

Surface electromyogram (sEMG) signals are widely used in human-machine interfaces for gesture recognition and user identification, but existing models often struggle to generalize across individuals due to subject-specific neuromuscular characteristics. This study introduces a di…

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arxivcs.LGcs.AI2026-07-16

Angular Gaussian Supervised Contrastive Learning for Long-Tailed Electrocardiogram Arrhythmia Diagnosis

Jin Dai, Qiuzhen Zhang, Chenyun Dai, Danmei Lan, Can Han

Long-tailed label distributions reduce the reliability of deep learning for electrocardiogram (ECG) arrhythmia diagnosis, particularly for clinically important but rare abnormalities. Existing rebalancing and logit adjustment methods mainly address class frequency while overlooki…

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