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Preference learning evaluation

paper

Authors

Pol del Aguila Pla·Sebastian Neumayer·Michael Unser

Credibility Rating

3/5
Good(3)

Good quality. Reputable source with community review or editorial standards, but less rigorous than peer-reviewed venues.

Rating inherited from publication venue: arXiv

Mathematical research on stability and robustness of image-reconstruction algorithms using variational regularization; relevant to AI safety through understanding robustness guarantees and continuity properties of optimization-based methods.

Paper Details

Citations
12
0 influential
Year
2022
Methodology
survey

Metadata

arxiv preprintprimary source

Abstract

Robustness and stability of image-reconstruction algorithms have recently come under scrutiny. Their importance to medical imaging cannot be overstated. We review the known results for the topical variational regularization strategies ($\ell_2$ and $\ell_1$ regularization) and present novel stability results for $\ell_p$-regularized linear inverse problems for $p\in(1,\infty)$. Our results guarantee Lipschitz continuity for small $p$ and Hölder continuity for larger $p$. They generalize well to the $L_p(Ω)$ function spaces.

Summary

This paper examines the robustness and stability of image-reconstruction algorithms, which are critical for medical imaging applications. The authors review existing results for common variational regularization strategies (ℓ2 and ℓ1 regularization) and present novel theoretical stability results for ℓp-regularized linear inverse problems across the range p∈(1,∞). The key contribution is establishing continuity guarantees—Lipschitz continuity for small p values and Hölder continuity for larger p values—with results that generalize to Lp(Ω) function spaces.

Cited by 1 page

PageTypeQuality
AI EvaluationApproach72.0

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