William W. Hager

Orcid: 0000-0003-3132-7017

According to our database1, William W. Hager authored at least 95 papers between 1989 and 2024.

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Bibliography

2024
On the stationarity for nonlinear optimization problems with polyhedral constraints.
Math. Program., May, 2024

2023
Preface to Asen L. Dontchev Memorial Special Issue.
Comput. Optim. Appl., December, 2023

Extension of switch point algorithm to boundary-value problems.
Comput. Optim. Appl., December, 2023

Algorithm 1035: A Gradient-based Implementation of the Polyhedral Active Set Algorithm.
ACM Trans. Math. Softw., June, 2023

2022
An inexact accelerated stochastic ADMM for separable convex optimization.
Comput. Optim. Appl., 2022

2021
The Switch Point Algorithm.
SIAM J. Control. Optim., 2021

Modified Legendre-Gauss-Radau Collocation Method for Optimal Control Problems with Nonsmooth Solutions.
J. Optim. Theory Appl., 2021

2020
Algorithm 1003: Mongoose, a Graph Coarsening and Partitioning Library.
ACM Trans. Math. Softw., 2020

Convergence rates for an inexact ADMM applied to separable convex optimization.
Comput. Optim. Appl., 2020

2019
Inexact alternating direction methods of multipliers for separable convex optimization.
Comput. Optim. Appl., 2019

Correction to: Convergence rate for a Radau hp collocation method applied to constrained optimal control.
Comput. Optim. Appl., 2019

Convergence rate for a Radau hp collocation method applied to constrained optimal control.
Comput. Optim. Appl., 2019

Bounds for integration matrices that arise in Gauss and Radau collocation.
Comput. Optim. Appl., 2019

2018
Adaptive Mesh Refinement Method for Optimal Control Using Decay Rates of Legendre Polynomial Coefficients.
IEEE Trans. Control. Syst. Technol., 2018

Convergence Rate for a Gauss Collocation Method Applied to Constrained Optimal Control.
SIAM J. Control. Optim., 2018

A multilevel bilinear programming algorithm for the vertex separator problem.
Comput. Optim. Appl., 2018

A pseudospectral method for optimal control based on collocation at the Gauss points.
Proceedings of the 57th IEEE Conference on Decision and Control, 2018

Modified Radau Collocation Method for Solving Optimal Control Problems with Nonsmooth Solutions Part II: Costate Estimation and the Transformed Adjoint System.
Proceedings of the 57th IEEE Conference on Decision and Control, 2018

Modified Radau Collocation method for Solving Optimal Control Problems with Nonsmooth Solutions Part I: Lavrentiev Phenomenon and the Search Space.
Proceedings of the 57th IEEE Conference on Decision and Control, 2018

2016
An Efficient Hybrid Algorithm for the Separable Convex Quadratic Knapsack Problem.
ACM Trans. Math. Softw., 2016

An O(1/k) Convergence Rate for the Variable Stepsize Bregman Operator Splitting Algorithm.
SIAM J. Numer. Anal., 2016

Projection onto a Polyhedron that Exploits Sparsity.
SIAM J. Optim., 2016

Convergence Rate for a Gauss Collocation Method Applied to Unconstrained Optimal Control.
J. Optim. Theory Appl., 2016

Projection algorithms for nonconvex minimization with application to sparse principal component analysis.
J. Glob. Optim., 2016

2015
Adaptive mesh refinement method for optimal control using nonsmoothness detection and mesh size reduction.
J. Frankl. Inst., 2015

Continuous quadratic programming formulations of optimization problems on graphs.
Eur. J. Oper. Res., 2015

2014
Optimality conditions for maximizing a function over a polyhedron.
Math. Program., 2014

Error estimation in nonlinear optimization.
J. Glob. Optim., 2014

Projection algorithms for non-convex minimization, with application to sparse principal component analysis.
CoRR, 2014

An affine scaling method for optimization problems with polyhedral constraints.
Comput. Optim. Appl., 2014

An efficient gradient method using the Yuan steplength.
Comput. Optim. Appl., 2014

A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators.
Proceedings of the Learning and Intelligent Optimization, 2014

An hp mesh refinement method for optimal control using discontinuity detection and mesh size reduction.
Proceedings of the 53rd IEEE Conference on Decision and Control, 2014

2013
The Limited Memory Conjugate Gradient Method.
SIAM J. Optim., 2013

An exact algorithm for graph partitioning.
Math. Program., 2013

Bregman operator splitting with variable stepsize for total variation image reconstruction.
Comput. Optim. Appl., 2013

Costate estimation of state-inequality path constrained optimal control problems using collocation at Legendre-Gauss-Radau points.
Proceedings of the 52nd IEEE Conference on Decision and Control, 2013

2012
Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging.
SIAM J. Imaging Sci., 2012

Partially parallel MR image reconstruction using sensitivity encoding.
Proceedings of the 19th IEEE International Conference on Image Processing, 2012

2011
An Affine-Scaling Interior-Point Method for Continuous Knapsack Constraints with Application to Support Vector Machines.
SIAM J. Optim., 2011

Gradient-Based Methods for Sparse Recovery.
SIAM J. Imaging Sci., 2011

Direct trajectory optimization and costate estimation of finite-horizon and infinite-horizon optimal control problems using a Radau pseudospectral method.
Comput. Optim. Appl., 2011

Pseudospectral methods for solving infinite-horizon optimal control problems.
Autom., 2011

2010
Analysis of a Quadratic Programming Decomposition Algorithm.
SIAM J. Numer. Anal., 2010

A unified framework for the numerical solution of optimal control problems using pseudospectral methods.
Autom., 2010

2009
Dynamic Supernodes in Sparse Cholesky Update/Downdate and Triangular Solves.
ACM Trans. Math. Softw., 2009

An Ellipsoidal Branch and Bound Algorithm for Global Optimization.
SIAM J. Optim., 2009

An affine-scaling interior-point CBB method for box-constrained optimization.
Math. Program., 2009

2008
Algorithm 887: CHOLMOD, Supernodal Sparse Cholesky Factorization and Update/Downdate.
ACM Trans. Math. Softw., 2008

Optimization of Generalized Mean-Square Error in Noisy Linear Estimation.
SIAM J. Matrix Anal. Appl., 2008

Dual multilevel optimization.
Math. Program., 2008

A sparse proximal implementation of the LP dual active set algorithm.
Math. Program., 2008

The generalized triangular decomposition.
Math. Comput., 2008

Self-adaptive inexact proximal point methods.
Comput. Optim. Appl., 2008

COAP 2007 Best Paper Award.
Comput. Optim. Appl., 2008

Editorial.
Comput. Optim. Appl., 2008

2007
Training Signal Design for Estimation of Correlated MIMO Channels With Colored Interference.
IEEE Trans. Signal Process., 2007

Asymptotic Convergence Analysis of a New Class of Proximal Point Methods.
SIAM J. Control. Optim., 2007

Multilevel domain decomposition for electronic structure calculations.
J. Comput. Phys., 2007

Domain Decomposition for Electronic Structure Computations.
Proceedings of the Parallel Computing: Architectures, 2007

2006
Tunable Channel Decomposition for MIMO Communications Using Channel State Information.
IEEE Trans. Signal Process., 2006

Algorithm 851: CG_DESCENT, a conjugate gradient method with guaranteed descent.
ACM Trans. Math. Softw., 2006

A New Active Set Algorithm for Box Constrained Optimization.
SIAM J. Optim., 2006

Editorial.
Comput. Optim. Appl., 2006

2005
Uniform channel decomposition for MIMO communications.
IEEE Trans. Signal Process., 2005

Joint transceiver design for MIMO communications using geometric mean decomposition.
IEEE Trans. Signal Process., 2005

Row Modifications of a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl., 2005

A New Conjugate Gradient Method with Guaranteed Descent and an Efficient Line Search.
SIAM J. Optim., 2005

Global convergence of SSM for minimizing a quadratic over a sphere.
Math. Comput., 2005

Recent Advances in Bound Constrained Optimization.
Proceedings of the System Modeling and Optimization, 2005

2004
A Nonmonotone Line Search Technique and Its Application to Unconstrained Optimization.
SIAM J. Optim., 2004

The Gradient Projection Method with Exact Line Search.
J. Glob. Optim., 2004

MIMO transceiver design using geometric mean decomposition.
Proceedings of the 2004 IEEE Information Theory Workshop, 2004

Two new regularized AdaBoost algorithms.
Proceedings of the 2004 International Conference on Machine Learning and Applications, 2004

2002
Minimizing the Profile of a Symmetric Matrix.
SIAM J. Sci. Comput., 2002

Multiset graph partitioning.
Math. Methods Oper. Res., 2002

The Dual Active Set Algorithm and Its Application to Linear Programming.
Comput. Optim. Appl., 2002

2001
Multiple-Rank Modifications of a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl., 2001

Minimizing a Quadratic Over a Sphere.
SIAM J. Optim., 2001

The Euler approximation in state constrained optimal control.
Math. Comput., 2001

2000
Iterative Methods for Nearly Singular Linear Systems.
SIAM J. Sci. Comput., 2000

Second-Order Runge-Kutta Approximations in Control Constrained Optimal Control.
SIAM J. Numer. Anal., 2000

Uniform Convergence and Mesh Independence of Newton's Method for Discretized Variational Problems.
SIAM J. Control. Optim., 2000

The Wave Annihilation Technique and the Design of Nonreflective Coatings.
SIAM J. Appl. Math., 2000

Runge-Kutta methods in optimal control and the transformed adjoint system.
Numerische Mathematik, 2000

Load Balancing and Continuous Quadratic Programming.
Proceedings of the Parallel and Distributed Processing, 2000

1999
Modifying a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl., 1999

Graph Partitioning and Continuous Quadratic Programming.
SIAM J. Discret. Math., 1999

Stability in the presence of degeneracy and error estimation.
Math. Program., 1999

Stabilized Sequential Quadratic Programming.
Comput. Optim. Appl., 1999

1994
Implicit Functions, Lipschitz Maps, and Stability in Optimization.
Math. Oper. Res., 1994

1993
Application of the dual active set algorithm to quadratic network optimization.
Comput. Optim. Appl., 1993

Dual active sets and constrained optimization.
Ann. Oper. Res., 1993

7 Mathematical programming - A computational perspective.
Proceedings of the Computational Statistics., 1993

1989
Updating the Inverse of a Matrix.
SIAM Rev., 1989


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