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What's in a Prior? Learned Proximal Networks for Inverse Problems
March 29, 2024, 4:43 a.m. | Zhenghan Fang, Sam Buchanan, Jeremias Sulam
cs.LG updates on arXiv.org arxiv.org
Abstract: Proximal operators are ubiquitous in inverse problems, commonly appearing as part of algorithmic strategies to regularize problems that are otherwise ill-posed. Modern deep learning models have been brought to bear for these tasks too, as in the framework of plug-and-play or deep unrolling, where they loosely resemble proximal operators. Yet, something essential is lost in employing these purely data-driven approaches: there is no guarantee that a general deep network represents the proximal operator of any …
abstract arxiv cs.cv cs.lg deep learning framework modern networks operators part prior strategies tasks type
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