压缩感知中的分布鲁棒优化模型及其求解方法
Distributed Robust Optimization Model and Its Solution Method in Compressed Sensing
摘要: 压缩感知(CS)理论作为当前先采样后压缩方法的替代方法引起了很多的关注,相关学者已经提出很多CS恢复算法如CoSaMP等,而带噪声的压缩感知模型可以表示为l1-范数问题,由于不易判断矩阵的有限等距性(RIP)以及观测矩阵的不确定性,考虑将该l1-范数问题建模为分布鲁棒优化问题,再借助KL-散度、函数变换以及内部最大化期望函数等方法得到分布鲁棒优化问题的等价形式。
Abstract: Compressed sensing (CS) theory has attracted a lot of attention as an alternative to the current sampling-then-compression method. Relevant scholars have proposed many CS recovery algorithms such as CoSaMP, etc., and the noisy compressed sensing model can be expressed as an l1-norm problem. Since it is difficult to judge the finite isometric property (RIP) of the matrix and the uncertainty of the observation matrix, consider modeling the l1-norm problem as a distributed robust optimization problem, and then use KL-divergence, function transformation and internal maximization methods such as the expectation function obtain equivalent forms of distributed robust optimization problems.
文章引用:李达臣. 压缩感知中的分布鲁棒优化模型及其求解方法[J]. 应用数学进展, 2024, 13(3): 1036-1045. https://doi.org/10.12677/aam.2024.133098

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