Converting ADMM to a proximal gradient for efficient sparse estimation
Converting ADMM to a proximal gradient for efficient sparse estimation
复制标题
将 ADMM 转换为近端梯度以进行有效的稀疏估计
DOI:
10.1007/s42081-022-00150-6
复制
发表时间:
2022
影响因子:
1.3
通讯作者:
Suzuki Joe
中科院分区:
文献类型:
--
作者:
Shimmura Ryosuke;Suzuki Joe
In sparse estimation, such as fused lasso and convex clustering, we apply either the proximal gradient method or the alternating direction method of multipliers (ADMM) to solve the problem. It takes time to include matrix division in the former case, while an efficient method such as FISTA (fast iterative shrinkage-thresholding algorithm) has been developed in the latter case. This paper proposes a general method for converting the ADMM solution to the proximal gradient method, assuming that assumption that the derivative of the objective function is Lipschitz continuous. Then, we apply it to sparse estimation problems, such as sparse convex clustering and trend filtering, and we show by numerical experiments that we can obtain a significant improvement in terms of efficiency.
影响因子:
6.8
作者:
AKAIKE, H
通讯作者:
AKAIKE, H
影响因子:
2.1
作者:
Beck, Amir;Teboulle, Marc
通讯作者:
Teboulle, Marc
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
Suzuki;Joe
通讯作者:
Joe