Complementary Domain Hypothesis
The Lyapunov term was the main cross-modal carrier, while recurrence and entropy transferred poorly. Direct paired BIDMC validation gave partial support to CDH with moderate ECG-PPG CSI correlations. The findings do not support full interc…
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The Lyapunov term was the main cross-modal carrier, while recurrence and entropy transferred poorly. Direct paired BIDMC validation gave partial support to CDH with moderate ECG-PPG CSI correlations. The findings do not support full interchangeability of ECG-derived and PPG-derived CSI. The Complementary Domain Hypothesis treats ECG and PPG as smooth observations of the same latent cardiac state. CDH does not predict uniformly high transfer because PPG is affected by pulse transit time and peripheral vascular factors.