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- W4328007166 abstract "This paper aims to estimate the information between two random phenomena by using consolidated second-order statistics tools. The squared-loss mutual information, a surrogate of the Shannon mutual information, is chosen due to its property of being expressed as a second-order moment. We first review the rationale for i.i.d. discrete sources, which involves mapping the data onto the simplex space, and we highlight the links with other well-known related concepts in the literature based on local approximations of information-theoretic measures. Then, the problem is translated to analog sources by mapping the data onto the characteristic space, focusing on the adaptability between the discrete and the analog case and its limitations. The proposed approach gains interpretability and scalability for its use on large data sets, providing a unified rationale for the free regularization parameters. Moreover, the structure of the proposed mapping allows resorting to Szegö’s theorem to reduce the complexity for high dimensional mappings, exhibiting a strong duality with spectral analysis. The performance of the developed estimators is analyzed using Gaussian mixtures." @default.
- W4328007166 created "2023-03-22" @default.
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- W4328007166 date "2023-08-01" @default.
- W4328007166 modified "2023-09-27" @default.
- W4328007166 title "Regularized Estimation of Information via Canonical Correlation Analysis on a Finite-Dimensional Feature Space" @default.
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- W4328007166 doi "https://doi.org/10.1109/tit.2023.3258182" @default.
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