An investigation of Newton-Sketch and subsampled Newton methods
Journal Article
·
· Optimization Methods and Software
- Lehigh Univ., Bethlehem, PA (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Northwestern Univ., Evanston, IL (United States)
Sketching, a dimensionality reduction technique, has received much attention in the statistics community. In this paper, we study sketching in the context of Newton's method for solving finite-sum optimization problems in which the number of variables and data points are both large. In this work, we study two forms of sketching that perform dimensionality reduction in data space: Hessian subsampling and randomized Hadamard transformations. Each has its own advantages, and their relative tradeoffs have not been investigated in the optimization literature. Additionally, our study focuses on practical versions of the two methods in which the resulting linear systems of equations are solved approximately, at every iteration, using an iterative solver. The advantages of using the conjugate gradient method vs. a stochastic gradient iteration are revealed through a set of numerical experiments, and a complexity analysis of the Hessian subsampling method is presented.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); US Office of Naval Research (ONR); USDOD Defense Advanced Research Projects Agency (DARPA); USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1657509
- Journal Information:
- Optimization Methods and Software, Journal Name: Optimization Methods and Software Journal Issue: 4 Vol. 35; ISSN 1055-6788
- Publisher:
- Taylor & FrancisCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exact and inexact subsampled Newton methods for optimization
An inexact semismooth Newton method with application to adaptive randomized sketching for dynamic optimization
A Scalable Interior‐Point Gauss–Newton Method for PDE‐Constrained Optimization With Bound Constraints
Journal Article
·
Tue Apr 03 00:00:00 EDT 2018
· IMA Journal of Numerical Analysis
·
OSTI ID:1610078
An inexact semismooth Newton method with application to adaptive randomized sketching for dynamic optimization
Journal Article
·
Tue Oct 17 20:00:00 EDT 2023
· Finite Elements in Analysis and Design
·
OSTI ID:2311364
A Scalable Interior‐Point Gauss–Newton Method for PDE‐Constrained Optimization With Bound Constraints
Journal Article
·
Sat Nov 29 19:00:00 EST 2025
· Numerical Linear Algebra with Applications
·
OSTI ID:3014007