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Robust generalized canonical correlation analysis

Robust generalized canonical correlation analysis Generalized canonical correlation analysis (GCCA) has been widely used for classification and regression problems. The key idea of GCCA is to map the data from different views into a common space with the minimum reconstruction error. However, GCCA employs the squared Frobenius norm as a distance metric to find a latent correlated space without a specific strategy to cope with outliers, thus misguiding the GCCA’s training task in real-world applications and leading to suboptimal performance. This inspires us to propose a novel robust formulation for GCCA, namely, GCCA with the p-order (0<p≤2\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$0<p\le 2$$\end{document}) of Frobenius norm minimization (called RGCCA). It is difficult to solve the RGCCA involving the nonsmooth and nonconvex p-order of F-norm terms. Therefore, an efficient iterative algorithm is developed to solve RGCCA, theoretically analyzing its convergence property. In addition, the parameters of RGCCA nicely trade-off between accuracy and training time, a property especially useful for larger samples. Empirical experiments and theoretical analysis prove the effectiveness and robustness of RGCCA on both noiseless and noisy datasets. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Intelligence Springer Journals

Robust generalized canonical correlation analysis

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References (69)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
0924-669X
eISSN
1573-7497
DOI
10.1007/s10489-023-04666-6
Publisher site
See Article on Publisher Site

Abstract

Generalized canonical correlation analysis (GCCA) has been widely used for classification and regression problems. The key idea of GCCA is to map the data from different views into a common space with the minimum reconstruction error. However, GCCA employs the squared Frobenius norm as a distance metric to find a latent correlated space without a specific strategy to cope with outliers, thus misguiding the GCCA’s training task in real-world applications and leading to suboptimal performance. This inspires us to propose a novel robust formulation for GCCA, namely, GCCA with the p-order (0<p≤2\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$0<p\le 2$$\end{document}) of Frobenius norm minimization (called RGCCA). It is difficult to solve the RGCCA involving the nonsmooth and nonconvex p-order of F-norm terms. Therefore, an efficient iterative algorithm is developed to solve RGCCA, theoretically analyzing its convergence property. In addition, the parameters of RGCCA nicely trade-off between accuracy and training time, a property especially useful for larger samples. Empirical experiments and theoretical analysis prove the effectiveness and robustness of RGCCA on both noiseless and noisy datasets.

Journal

Applied IntelligenceSpringer Journals

Published: Sep 1, 2023

Keywords: Outliers and noise; p-order of Frobenius norm; Robust RGCCA; Squared Frobenius norm

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