变分不等式的梯度投影法的简化版及其应用

N. T. Vinh, N. T. Thuong
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引用次数: 1

摘要

在本文中,我们提出了一种松弛版的梯度投影方法,用于在一个(可能不可微的)凸函数的水平集上定义的强单调变分不等式。我们的算法可以很容易地实现,因为它在每次迭代中计算一个投影到包含可行集和底层映射的一个值的半空间上。在温和和标准条件下,证明了算法的强收敛性。数值结果和图像去模糊问题的比较表明,我们的方法优于文献中的相关算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A relaxed version of the gradient projection method for variational inequalities with applications
"In this paper, we propose a relaxed version of the gradient projection method for strongly monotone variational inequalities de ned on a level set of a (possibly non-di erentiable) convex function. Our algorithm can be implemented easily since it computes on every iteration one projection onto some half-space containing the feasible set and only one value of the underlying mapping. Under mild and standard conditions we establish the strong convergence of the proposed algorithm. Numerical results and comparisons for the image deblurring problem show that our method can outperform related algorithms in the literature."
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