Introduces SCSI nonlinear complexity index for PPG cardiovascular stability, corrects evaluation leakages, applies Bayesian optimization over 15 parameters, and reports cross-validation AUC 0.720 with held-out pooled AUC 0.757.
Tree-structured Parzen estimator: understanding its al- gorithm components and their roles for better empirical performance
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A Nonlinear Complexity Index for Wearable PPG Cardiovascular Stability: Multiscale Validation, Systematic Evaluation Correction, and Bayesian Parameter Optimization
Introduces SCSI nonlinear complexity index for PPG cardiovascular stability, corrects evaluation leakages, applies Bayesian optimization over 15 parameters, and reports cross-validation AUC 0.720 with held-out pooled AUC 0.757.