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2020 – today
- 2024
[j82]Daniela di Serafino, William W. Hager
, Gerardo Toraldo, Marco Viola:
On the stationarity for nonlinear optimization problems with polyhedral constraints. Math. Program. 205(1): 107-134 (2024)- 2023
- [j81]William W. Hager, R. Tyrrell Rockafellar, Vladimir M. Veliov:
Preface to Asen L. Dontchev Memorial Special Issue. Comput. Optim. Appl. 86(3): 795-800 (2023) - [j80]William W. Hager:
Extension of switch point algorithm to boundary-value problems. Comput. Optim. Appl. 86(3): 1229-1246 (2023) - [j79]William W. Hager, Hongchao Zhang:
Algorithm 1035: A Gradient-based Implementation of the Polyhedral Active Set Algorithm. ACM Trans. Math. Softw. 49(2): 20:1-20:13 (2023) - [i6]William W. Hager:
Extension of Switch Point Algorithm to Boundary-Value Problems. CoRR abs/2307.09722 (2023) - 2022
- [j78]Jianchao Bai, William W. Hager, Hongchao Zhang:
An inexact accelerated stochastic ADMM for separable convex optimization. Comput. Optim. Appl. 81(2): 479-518 (2022) - 2021
- [j77]Joseph D. Eide, William W. Hager, Anil V. Rao:
Modified Legendre-Gauss-Radau Collocation Method for Optimal Control Problems with Nonsmooth Solutions. J. Optim. Theory Appl. 191(2): 600-633 (2021) - [j76]Mahya Aghaee, William W. Hager:
The Switch Point Algorithm. SIAM J. Control. Optim. 59(4): 2570-2593 (2021) - 2020
- [j75]William W. Hager, Hongchao Zhang:
Convergence rates for an inexact ADMM applied to separable convex optimization. Comput. Optim. Appl. 77(3): 729-754 (2020) - [j74]Timothy A. Davis, William W. Hager, Scott P. Kolodziej, Sencer Nuri Yeralan:
Algorithm 1003: Mongoose, a Graph Coarsening and Partitioning Library. ACM Trans. Math. Softw. 46(1): 7:1-7:18 (2020) - [i5]William W. Hager, Hongchao Zhang:
Convergence rates for an inexact ADMM applied to separable convex optimization. CoRR abs/2001.02503 (2020)
2010 – 2019
- 2019
- [j73]William W. Hager, Hongchao Zhang:
Inexact alternating direction methods of multipliers for separable convex optimization. Comput. Optim. Appl. 73(1): 201-235 (2019) - [j72]Wanchun Chen, Wenhao Du, William W. Hager, Liang Yang:
Bounds for integration matrices that arise in Gauss and Radau collocation. Comput. Optim. Appl. 74(1): 259-273 (2019) - [j71]William W. Hager, Hongyan Hou, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang:
Convergence rate for a Radau hp collocation method applied to constrained optimal control. Comput. Optim. Appl. 74(1): 275-314 (2019) - [j70]William W. Hager, Hongyan Hou, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang:
Correction to: Convergence rate for a Radau hp collocation method applied to constrained optimal control. Comput. Optim. Appl. 74(1): 315-316 (2019) - 2018
- [j69]William W. Hager, James T. Hungerford, Ilya Safro:
A multilevel bilinear programming algorithm for the vertex separator problem. Comput. Optim. Appl. 69(1): 189-223 (2018) - [j68]William W. Hager, Jun Liu, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang:
Convergence Rate for a Gauss Collocation Method Applied to Constrained Optimal Control. SIAM J. Control. Optim. 56(2): 1386-1411 (2018) - [j67]Fengjin Liu, William W. Hager, Anil V. Rao:
Adaptive Mesh Refinement Method for Optimal Control Using Decay Rates of Legendre Polynomial Coefficients. IEEE Trans. Control. Syst. Technol. 26(4): 1475-1483 (2018) - [c12]Joseph D. Eide, William W. Hager, Anil V. Rao:
Modified Radau Collocation method for Solving Optimal Control Problems with Nonsmooth Solutions Part I: Lavrentiev Phenomenon and the Search Space. CDC 2018: 1644-1650 - [c11]Joseph D. Eide, William W. Hager, Anil V. Rao:
Modified Radau Collocation Method for Solving Optimal Control Problems with Nonsmooth Solutions Part II: Costate Estimation and the Transformed Adjoint System. CDC 2018: 1651-1656 - [c10]William W. Hager, Jun Liu, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang:
A pseudospectral method for optimal control based on collocation at the Gauss points. CDC 2018: 2490-2495 - 2016
- [j66]William W. Hager, Dzung T. Phan, Jiajie Zhu:
Projection algorithms for nonconvex minimization with application to sparse principal component analysis. J. Glob. Optim. 65(4): 657-676 (2016) - [j65]William W. Hager, Hongyan Hou, Anil V. Rao:
Convergence Rate for a Gauss Collocation Method Applied to Unconstrained Optimal Control. J. Optim. Theory Appl. 169(3): 801-824 (2016) - [j64]William W. Hager, Hongchao Zhang:
Projection onto a Polyhedron that Exploits Sparsity. SIAM J. Optim. 26(3): 1773-1798 (2016) - [j63]William W. Hager, Maryam Yashtini, Hongchao Zhang:
An O(1/k) Convergence Rate for the Variable Stepsize Bregman Operator Splitting Algorithm. SIAM J. Numer. Anal. 54(3): 1535-1556 (2016) - [j62]Timothy A. Davis, William W. Hager, James T. Hungerford:
An Efficient Hybrid Algorithm for the Separable Convex Quadratic Knapsack Problem. ACM Trans. Math. Softw. 42(3): 22:1-22:25 (2016) - 2015
- [j61]William W. Hager, James T. Hungerford:
Continuous quadratic programming formulations of optimization problems on graphs. Eur. J. Oper. Res. 240(2): 328-337 (2015) - [j60]Fengjin Liu, William W. Hager, Anil V. Rao:
Adaptive mesh refinement method for optimal control using nonsmoothness detection and mesh size reduction. J. Frankl. Inst. 352(10): 4081-4106 (2015) - 2014
- [j59]William W. Hager, Hongchao Zhang:
An affine scaling method for optimization problems with polyhedral constraints. Comput. Optim. Appl. 59(1-2): 163-183 (2014) - [j58]Roberta De Asmundis, Daniela di Serafino, William W. Hager, Gerardo Toraldo, Hongchao Zhang:
An efficient gradient method using the Yuan steplength. Comput. Optim. Appl. 59(3): 541-563 (2014) - [j57]William W. Hager, Delphine Mico-Umutesi:
Error estimation in nonlinear optimization. J. Glob. Optim. 59(2-3): 327-341 (2014) - [j56]William W. Hager, James T. Hungerford:
Optimality conditions for maximizing a function over a polyhedron. Math. Program. 145(1-2): 179-198 (2014) - [c9]Fengjin Liu, William W. Hager, Anil V. Rao:
An hp mesh refinement method for optimal control using discontinuity detection and mesh size reduction. CDC 2014: 5868-5873 - [c8]William W. Hager, James T. Hungerford, Ilya Safro:
A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators. LION 2014: 77-81 - [i4]William W. Hager, Jiajie Zhu:
Projection algorithms for non-convex minimization, with application to sparse principal component analysis. CoRR abs/1404.4132 (2014) - [i3]William W. Hager, James T. Hungerford, Ilya Safro:
A Multilevel Bilinear Programming Algorithm For the Vertex Separator Problem. CoRR abs/1410.4885 (2014) - 2013
- [j55]Yunmei Chen, William W. Hager, Maryam Yashtini, Xiaojing Ye, Hongchao Zhang:
Bregman operator splitting with variable stepsize for total variation image reconstruction. Comput. Optim. Appl. 54(2): 317-342 (2013) - [j54]William W. Hager, Dzung T. Phan, Hongchao Zhang:
An exact algorithm for graph partitioning. Math. Program. 137(1-2): 531-556 (2013) - [j53]William W. Hager, Hongchao Zhang:
The Limited Memory Conjugate Gradient Method. SIAM J. Optim. 23(4): 2150-2168 (2013) - [c7]Camila Francolin, Hongyan Hou, William W. Hager, Anil V. Rao:
Costate estimation of state-inequality path constrained optimal control problems using collocation at Legendre-Gauss-Radau points. CDC 2013: 6469-6474 - [i2]William W. Hager, James T. Hungerford, Ilya Safro:
A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators. CoRR abs/1311.5930 (2013) - 2012
- [j52]Yunmei Chen, William W. Hager, Feng Huang, Dzung T. Phan, Xiaojing Ye, Wotao Yin:
Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging. SIAM J. Imaging Sci. 5(1): 90-118 (2012) - [c6]Maryam Yashtini, William W. Hager, Yunmei Chen, Xiaojing Ye:
Partially parallel MR image reconstruction using sensitivity encoding. ICIP 2012: 2077-2080 - 2011
- [j51]Divya Garg, William W. Hager, Anil V. Rao:
Pseudospectral methods for solving infinite-horizon optimal control problems. Autom. 47(4): 829-837 (2011) - [j50]Divya Garg, Michael A. Patterson, Camila Francolin, Christopher Darby, Geoffrey T. Huntington, William W. Hager, Anil V. Rao:
Direct trajectory optimization and costate estimation of finite-horizon and infinite-horizon optimal control problems using a Radau pseudospectral method. Comput. Optim. Appl. 49(2): 335-358 (2011) - [j49]William W. Hager, Dzung T. Phan, Hongchao Zhang:
Gradient-Based Methods for Sparse Recovery. SIAM J. Imaging Sci. 4(1): 146-165 (2011) - [j48]María D. González-Lima, William W. Hager, Hongchao Zhang:
An Affine-Scaling Interior-Point Method for Continuous Knapsack Constraints with Application to Support Vector Machines. SIAM J. Optim. 21(1): 361-390 (2011) - 2010
- [j47]Divya Garg, Michael A. Patterson, William W. Hager, Anil V. Rao, David A. Benson, Geoffrey T. Huntington:
A unified framework for the numerical solution of optimal control problems using pseudospectral methods. Autom. 46(11): 1843-1851 (2010) - [j46]Guy Bencteux, Eric Cancès, William W. Hager, Claude Le Bris:
Analysis of a Quadratic Programming Decomposition Algorithm. SIAM J. Numer. Anal. 47(6): 4517-4539 (2010)
2000 – 2009
- 2009
- [j45]William W. Hager, Bernard A. Mair, Hongchao Zhang:
An affine-scaling interior-point CBB method for box-constrained optimization. Math. Program. 119(1): 1-32 (2009) - [j44]William W. Hager, Dzung T. Phan:
An Ellipsoidal Branch and Bound Algorithm for Global Optimization. SIAM J. Optim. 20(2): 740-758 (2009) - [j43]Timothy A. Davis, William W. Hager:
Dynamic Supernodes in Sparse Cholesky Update/Downdate and Triangular Solves. ACM Trans. Math. Softw. 35(4): 27:1-27:23 (2009) - [i1]William W. Hager, Dzung T. Phan, Hongchao Zhang:
An exact algorithm for graph partitioning. CoRR abs/0912.1664 (2009) - 2008
- [j42]William W. Hager, Hongchao Zhang:
Self-adaptive inexact proximal point methods. Comput. Optim. Appl. 39(2): 161-181 (2008) - [j41]Luis Alberto Fernandez, William W. Hager, Fredi Tröltzsch:
Editorial. Comput. Optim. Appl. 39(3): 263 (2008) - [j40]William W. Hager:
COAP 2007 Best Paper Award. Comput. Optim. Appl. 41(2): 147-149 (2008) - [j39]Yi Jiang, William W. Hager, Jian Li:
The generalized triangular decomposition. Math. Comput. 77(262): 1037-1056 (2008) - [j38]Timothy A. Davis, William W. Hager:
A sparse proximal implementation of the LP dual active set algorithm. Math. Program. 112(2): 275-301 (2008) - [j37]Timothy A. Davis, William W. Hager:
Dual multilevel optimization. Math. Program. 112(2): 403-425 (2008) - [j36]William W. Hager, Jiangtao Luo:
Optimization of Generalized Mean-Square Error in Noisy Linear Estimation. SIAM J. Matrix Anal. Appl. 30(2): 783-804 (2008) - [j35]Yanqing Chen, Timothy A. Davis, William W. Hager, Sivasankaran Rajamanickam:
Algorithm 887: CHOLMOD, Supernodal Sparse Cholesky Factorization and Update/Downdate. ACM Trans. Math. Softw. 35(3): 22:1-22:14 (2008) - 2007
- [j34]Maxime Barrault, Eric Cancès, William W. Hager, Claude Le Bris:
Multilevel domain decomposition for electronic structure calculations. J. Comput. Phys. 222(1): 86-109 (2007) - [j33]William W. Hager, Hongchao Zhang:
Asymptotic Convergence Analysis of a New Class of Proximal Point Methods. SIAM J. Control. Optim. 46(5): 1683-1704 (2007) - [j32]Yong Liu, Tan F. Wong, William W. Hager:
Training Signal Design for Estimation of Correlated MIMO Channels With Colored Interference. IEEE Trans. Signal Process. 55(4): 1486-1497 (2007) - [c5]Maxime Barrault, Guy Bencteux, Eric Cancès, William W. Hager, Claude Le Bris:
Domain Decomposition for Electronic Structure Computations. PARCO 2007: 29-36 - 2006
- [j31]William W. Hager:
Editorial. Comput. Optim. Appl. 33(1): 5-6 (2006) - [j30]William W. Hager, Hongchao Zhang:
A New Active Set Algorithm for Box Constrained Optimization. SIAM J. Optim. 17(2): 526-557 (2006) - [j29]William W. Hager, Hongchao Zhang:
Algorithm 851: CG_DESCENT, a conjugate gradient method with guaranteed descent. ACM Trans. Math. Softw. 32(1): 113-137 (2006) - [j28]Yi Jiang, William W. Hager, Jian Li:
Tunable Channel Decomposition for MIMO Communications Using Channel State Information. IEEE Trans. Signal Process. 54(11): 4405-4418 (2006) - 2005
- [j27]William W. Hager, Soonchul Park:
Global convergence of SSM for minimizing a quadratic over a sphere. Math. Comput. 74(251): 1413-1423 (2005) - [j26]William W. Hager, Hongchao Zhang:
A New Conjugate Gradient Method with Guaranteed Descent and an Efficient Line Search. SIAM J. Optim. 16(1): 170-192 (2005) - [j25]Timothy A. Davis, William W. Hager:
Row Modifications of a Sparse Cholesky Factorization. SIAM J. Matrix Anal. Appl. 26(3): 621-639 (2005) - [j24]Yi Jiang, Jian Li, William W. Hager:
Joint transceiver design for MIMO communications using geometric mean decomposition. IEEE Trans. Signal Process. 53(10): 3791-3803 (2005) - [j23]Yi Jiang, Jian Li, William W. Hager:
Uniform channel decomposition for MIMO communications. IEEE Trans. Signal Process. 53(11): 4283-4294 (2005) - [c4]William W. Hager, Hongchao Zhang:
Recent Advances in Bound Constrained Optimization. System Modelling and Optimization 2005: 67-82 - 2004
- [j22]William W. Hager, Soonchul Park:
The Gradient Projection Method with Exact Line Search. J. Glob. Optim. 30(1): 103-118 (2004) - [j21]Hongchao Zhang, William W. Hager:
A Nonmonotone Line Search Technique and Its Application to Unconstrained Optimization. SIAM J. Optim. 14(4): 1043-1056 (2004) - [c3]Yijun Sun, Jian Li, William W. Hager:
Two new regularized AdaBoost algorithms. ICMLA 2004: 41-48 - [c2]Yi Jiang, Jian Li, William W. Hager:
MIMO transceiver design using geometric mean decomposition. ITW 2004: 193-197 - 2002
- [j20]William W. Hager:
The Dual Active Set Algorithm and Its Application to Linear Programming. Comput. Optim. Appl. 21(3): 263-275 (2002) - [j19]William W. Hager, Yaroslav Krylyuk:
Multiset graph partitioning. Math. Methods Oper. Res. 55(1): 1-10 (2002) - [j18]William W. Hager:
Minimizing the Profile of a Symmetric Matrix. SIAM J. Sci. Comput. 23(5): 1799-1816 (2002) - 2001
- [j17]Asen L. Dontchev, William W. Hager:
The Euler approximation in state constrained optimal control. Math. Comput. 70(233): 173-203 (2001) - [j16]William W. Hager:
Minimizing a Quadratic Over a Sphere. SIAM J. Optim. 12(1): 188-208 (2001) - [j15]Timothy A. Davis, William W. Hager:
Multiple-Rank Modifications of a Sparse Cholesky Factorization. SIAM J. Matrix Anal. Appl. 22(4): 997-1013 (2001) - 2000
- [j14]William W. Hager:
Runge-Kutta methods in optimal control and the transformed adjoint system. Numerische Mathematik 87(2): 247-282 (2000) - [j13]Dongxing Wang, Rouben Rostamian, William W. Hager:
The Wave Annihilation Technique and the Design of Nonreflective Coatings. SIAM J. Appl. Math. 60(4): 1388-1424 (2000) - [j12]Asen L. Dontchev, William W. Hager, Vladimir M. Veliov:
Uniform Convergence and Mesh Independence of Newton's Method for Discretized Variational Problems. SIAM J. Control. Optim. 39(3): 961-980 (2000) - [j11]Asen L. Dontchev, William W. Hager, Vladimir M. Veliov:
Second-Order Runge-Kutta Approximations in Control Constrained Optimal Control. SIAM J. Numer. Anal. 38(1): 202-226 (2000) - [j10]William W. Hager:
Iterative Methods for Nearly Singular Linear Systems. SIAM J. Sci. Comput. 22(2): 747-766 (2000) - [c1]William W. Hager:
Load Balancing and Continuous Quadratic Programming. IPDPS Workshops 2000: 427
1990 – 1999
- 1999
- [j9]William W. Hager:
Stabilized Sequential Quadratic Programming. Comput. Optim. Appl. 12(1-3): 253-273 (1999) - [j8]William W. Hager, M. Seetharama Gowda:
Stability in the presence of degeneracy and error estimation. Math. Program. 85(1): 181-192 (1999) - [j7]William W. Hager, Yaroslav Krylyuk:
Graph Partitioning and Continuous Quadratic Programming. SIAM J. Discret. Math. 12(4): 500-523 (1999) - [j6]Timothy A. Davis, William W. Hager:
Modifying a Sparse Cholesky Factorization. SIAM J. Matrix Anal. Appl. 20(3): 606-627 (1999) - 1994
- [j5]Asen L. Dontchev, William W. Hager:
Implicit Functions, Lipschitz Maps, and Stability in Optimization. Math. Oper. Res. 19(3): 753-768 (1994) - 1993
- [j4]William W. Hager:
Dual active sets and constrained optimization. Ann. Oper. Res. 43(4): 217-228 (1993) - [j3]William W. Hager, Donald W. Hearn:
Application of the dual active set algorithm to quadratic network optimization. Comput. Optim. Appl. 1(4): 349-373 (1993) - [p1]William W. Hager, Reiner Horst, Panos M. Pardalos:
7 Mathematical programming - A computational perspective. Computational Statistics 1993: 201-278 - 1992
- [j2]William W. Hager:
Editorial. Comput. Optim. Appl. 1(1): 5 (1992)
1980 – 1989
- 1989
- [j1]William W. Hager:
Updating the Inverse of a Matrix. SIAM Rev. 31(2): 221-239 (1989)
Coauthor Index
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