Appendix for PulseImpute

A1.1 What is the rationale for constructing a dataset for mHealth signal imputation from equivalent signals connected in the clinical setting? We can mimic real-world mHealth settings by applying realistic patterns of mHealth missingness. A1.2 What are the differences in how the ECG/PPG sensors collect pulsative signals across both settings? An ECG signal is a recording of the electrical activity of the heart. In clinical hospital settings, the pulse oximeter device is clipped to a stationary patient's finger, so the A1.3 How do the populations differ in these two settings?