Article

Spectral Moment Embedding: A canonical generalisation of Characteristic Response Analysis for covariance-based signal classification

2026-05-27

Abstract excerpt

<title>Abstract</title> <p>Covariance matrices underpin multivariate signal classifiers in brain-computer interfaces, clinical neurophysiology, and condition monitoring. Characteristic Response Analysis (CRA) and its Positive-Orthant Characteristic Response (POCR) vector extract a sign-invariant descriptor from a covariance matrix via spherical coordinates of a weighted eigenvector sum. Despite practical utility,...

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Literature Corpus work: 6a38a288-ccd6-5ff3-b3a4-b8d853023a11
DOI: 10.21203/rs.3.rs-9286518/v1

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