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Chen-Xi Yang

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Preprint Aug 2026

Diagnosing as Cardiologists Do: ECG Agents with Doctor-Grounded Priors for Clinical Reasoning Across Diseases and Populations

Cardiologists interpret electrocardiograms by localizing waveform components, measuring rhythm and interval patterns, and translating these structured observations into diagnostic evidence. Whether this expert reading process can serve as an effective prior for ECG agents remains unclear. To address this question, we i...

Hongxiang Gao, Heyang Xu, Yuwen Li et al. · 0 citations
Preprint Sep 2026

Beyond Ambiguous Visual Cues: Studying Physiological Disruptions and Cross-Modal Inconsistencies in Deepfake Videos

This paper constructs high-fidelity deepfake manipulations on established real rPPG datasets to investigate how forgeries disrupt natural physiological signals and facial behavior at the same time and proposes a bidirectional co-attention fusion detector that jointly models rPPG and facial behavior tokens.

Chen-Xi Yang, Yassine Ouzar, Larbi Boubchir · 0 citations

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