Interpretable ECG Anomaly Scoring in Walsh–Hadamard Coordinates: Orthogonal Invariance and Exact Time-Domain Score Decomposition

This repository contains the Python implementation and reproducibility package corresponding to the manuscript “Interpretable ECG Anomaly Scoring in Walsh–Hadamard Coordinates: Orthogonal Invariance and Exact Time-Domain Score Decomposition.” The archived materials support the methodological evaluation reported in the manuscript, including the regularized quadratic anomaly-scoring pipeline, Walsh–Hadamard coordinate representation, exact time-domain score decomposition, and figure-generation workflow. Persistent DOI: https://doi.org/10.5281/zenodo.18135575