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The Generalized Multiplicative Gradient Method and Its Convergence Rate Analysis
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The Generalized Multiplicative Gradient Method and Its Convergence Rate Analysis

Renbo Zhao
ArXiv.org
Cornell University
07/26/2022
DOI: 10.48550/arxiv.2207.13198
url
https://doi.org/10.48550/arXiv.2207.13198View
Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Multiplicative gradient method is a classical and effective method for solving the positron emission tomography (PET) problem. In this work, we propose a generalization of this method on a broad class of problems, which includes the PET problem as a special case. We show that this generalized method converges with rate O(1/k).
Mathematics - Optimization and Control

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