Papers › Bayesian variational regularization on the ball

Bayesian variational regularization on the ball

12 May 2021arXiv:2105.05518links table onlyarchive 2025-07-28

Matthew A. Price, Jason D. McEwen

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We develop variational regularization methods which leverage sparsity-promoting priors to solve severely ill posed inverse problems defined on the 3D ball (i.e. the solid sphere). Our method solves the problem natively on the ball and thus does not suffer from discontinuities that plague alternate approaches where each spherical shell is considered independently. Additionally, we leverage advances in probability density theory to produce Bayesian variational methods which benefit from the computational efficiency of advanced convex optimization algorithms, whilst supporting principled uncertainty quantification. We showcase these variational regularization and uncertainty quantification techniques on an illustrative example. The C++ code discussed throughout is provided under a GNU general public license.

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astro-informatics/baller mentioned on GitHubjaxMIT report
astro-informatics/s2ball mentioned on GitHubjax report
astro-informatics/src_flag mentioned on GitHubGPL-2.0 report
astro-informatics/src_flaglet mentioned on GitHubGPL-2.0 report

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