具有稀疏性约束的 Tikhonov 泛函的半光滑牛顿法
最优化与控制
2010-10-26 v3 数值分析
摘要
研究了具有稀疏性约束的 Tikhonov 泛函在ℓ2中的极小化问题。解的稀疏性由加权ℓ1惩罚项保证。证明了最优性的必要和充分条件是斜可微的(Newton 可微),因此适用于半光滑牛顿法。证明了该方法的局部超线性收敛性。数值算例表明,我们的方法与现有方法相比具有优势。
引用
@article{arxiv.0709.3186,
title = {A Semismooth Newton Method for Tikhonov Functionals with Sparsity Constraints},
author = {Roland Griesse and Dirk A. Lorenz},
journal= {arXiv preprint arXiv:0709.3186},
year = {2010}
}
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