Evaluator-Dependent Patient-Adaptive ECG Lead-Channel Allocation
The diagnostic value of an ECG channel depends on the model that interprets it. We test whether adaptive acquisition retains its advantage over fixed protocols when that model changes. Two policies developed with a logistic evaluator are frozen and assessed with a masked waveform ResNet1D, using exhaustive, metric-matched fixed comparators. On PTB-XL, replacing the evaluator reverses the mean adaptive advantage in negative log-likelihood and Brier score across the tested budgets, while calibration responds less uniformly. The shift persists with common fixed references and broader training-mask exposure. Training a policy against the stronger evaluator partly recovers the lost advantage. ...
| Authors | Xiaoyang Li, Zeyan Tao |
|---|---|
| Primary category | cs.CV |
| Published | 27 August 2026 |
| Last updated at source | 7 September 2026 |
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