All articles
arxiv arXiv cs.LG · 6h ago

Patient-Aware Contrastive Learning Preserves Per-Patient Structure in RR-Interval Representations

The article addresses the challenge of contrastive representation learning on physiological signals where subject-specific baselines interfere with class-level objectives, causing models to lose individual variation necessary for generalization. The authors propose a patient-aware contrastive objective for Paroxysmal Atrial Fibrillation detection that forms positive pairs only from same-patient segments to preserve sinus rhythm baselines while separating classes.

arxiv arXiv cs.LG · 7h ago

Polynomial Kolmogorov-Arnold Networks Learn Game of Life Dynamics

This study demonstrates that neural networks can reliably learn Conway's Game of Life dynamics using minimal architectures by employing specific inductive biases rather than relying on large-scale search processes. The authors show that network variants with alternative activation functions significantly outperform standard Rectified Linear Units, particularly through the use of second-degree polynomial activations.