Approximating sparse Hessian matrices using large-scale linear least squares
Approximating sparse Hessian matrices using large-scale linear least squares
复制标题
使用大规模线性最小二乘法逼近稀疏 Hessian 矩阵
DOI:
10.1007/s11075-023-01681-z
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发表时间:
2023
影响因子:
2.1
通讯作者:
Fowkes J
中科院分区:
文献类型:
--
作者:
Fowkes J
Large-scale optimization algorithms frequently require sparse Hessian matrices that are not readily available. Existing methods for approximating large sparse Hessian matrices have limitations. To try and overcome these, we propose a novel approach that reformulates the problem as the solution of a large linear least squares problem. The least squares problem is sparse but can include a number of rows that contain significantly more entries than other rows and are regarded as dense. We exploit recent work on solving such problems using either the normal equations or an augmented system to derive a robust approach for computing approximate sparse Hessian matrices. Example sparse Hessians from the CUTEst test problem collection for optimization illustrate the effectiveness and robustness of the new method.
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DOI:
10.1007/978-3-030-01431-5
发表时间:
2018
期刊:
--
影响因子:
--
作者:
M. Rozložník
通讯作者:
M. Rozložník
DOI:
10.1145/1057562.1057564
发表时间:
1981
期刊:
ACM Signum Newsletter
影响因子:
--
作者:
D. Sorensen
通讯作者:
D. Sorensen
DOI:
10.1145/3412559
发表时间:
2020
期刊:
ACM Transactions on Mathematical Software (TOMS)
影响因子:
--
作者:
J. Scott;M. Tuma
通讯作者:
M. Tuma
影响因子:
2.1
作者:
J. Scott;M. Tuma
通讯作者:
M. Tuma
影响因子:
2.3
作者:
Jonathan D. Hogg;J. Scott
通讯作者:
J. Scott