-
H. A. Castillo,
M. R. Jovanovic,
S. Kumar,
A. Morozov,
V. Shankar,
G. Subramanian,
and H. J. Wilson.
Understanding viscoelastic flow instabilities: Oldroyd-B and beyond.
J. Non-Newtonian Fluid Mech.,
302:104742 (39 pages),
April 2022.
Note: Part of the special issue commemorating the birth centenary of James Oldroyd.
Keyword(s): Flow modeling and control,
Input-output analysis,
Elastic turbulence,
Energy amplification,
Transition to turbulence,
Uncertainty quantification in PDEs,
Spatio-temporal frequency responses,
Viscoelastic fluids,
Viscoelastic instabilities.
@article{oldroyd100,
author = {H. A. Castillo and M. R. Jovanovi\'c and S. Kumar and A. Morozov and V. Shankar and G. Subramanian and H. J. Wilson},
title = {Understanding viscoelastic flow instabilities: {O}ldroyd-{B} and beyond},
journal = {J. Non-Newtonian Fluid Mech.},
volume = {302},
pages = {104742 (39 pages)},
month = {April},
year = {2022},
note = {{P}art of the special issue commemorating the birth centenary of {J}ames {O}ldroyd},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/oldroyd100.pdf},
keywords = {Flow modeling and control, Input-output analysis, Elastic turbulence, Energy amplification, Transition to turbulence, Uncertainty quantification in PDEs, Spatio-temporal frequency responses, Viscoelastic fluids, Viscoelastic instabilities}
}
-
N. K. Dhingra,
S. Z. Khong,
and M. R. Jovanovic.
A second order primal-dual method for nonsmooth convex composite optimization.
IEEE Trans. Automat. Control,
67(8):4061-4076,
August 2022.
Keyword(s): Augmented Lagrangian,
Exponential convergence,
Global exponential stability,
Method of multipliers,
Non-smooth optimization,
Proximal algorithms,
Proximal augmented Lagrangian,
Regularization for design,
Second order primal-dual method,
Sparsity-promoting optimal control,
Structured optimal control,
Structure identification.
@ARTICLE{dhikhojovTAC22,
AUTHOR = {N. K. Dhingra and S. Z. Khong and M. R. Jovanovi\'c},
TITLE = {A second order primal-dual method for nonsmooth convex composite optimization},
JOURNAL = {IEEE Trans. Automat. Control},
VOLUME = {67},
NUMBER = {8},
PAGES = {4061-4076},
MONTH = {August},
YEAR = {2022},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/dhikhojovTAC22.pdf},
KEYWORDS = {Augmented Lagrangian, Exponential convergence, Global exponential stability, Method of multipliers, Non-smooth optimization, Proximal algorithms, Proximal augmented Lagrangian, Regularization for design, Second order primal-dual method, Sparsity-promoting optimal control, Structured optimal control, Structure identification}
}
-
D. Ding,
K. Zhang,
J. Duan,
T. Basar,
and M. R. Jovanovic.
Convergence and sample complexity of natural policy gradient primal-dual methods for constrained MDPs.
J. Mach. Learn. Res.,
2022.
Note: Submitted; also arXiv:2206.02346.
Keyword(s): Constrained Markov decision processes,
Constrained nonconvex optimization,
Function approximation,
Natural policy gradient,
Policy gradient methods,
Primal-dual algorithms,
Sample complexity.
@ARTICLE{dinzhaduabasjovJMLR22,
AUTHOR = {D. Ding and K. Zhang and J. Duan and T. Basar and M. R. Jovanovi\'c},
TITLE = {Convergence and sample complexity of natural policy gradient primal-dual methods for constrained {MDP}s },
JOURNAL = {J. Mach. Learn. Res.},
YEAR = {2022},
NOTE = {submitted; also arXiv:2206.02346},
PDF = {https://arxiv.org/abs/2206.02346},
KEYWORDS = {Constrained Markov decision processes, Constrained nonconvex optimization, Function approximation, Natural policy gradient, Policy gradient methods, Primal-dual algorithms, Sample complexity}
}
-
A. Dwivedi,
G. S. Sidharth,
and M. R. Jovanovic.
Oblique transition in hypersonic double-wedge flow.
J. Fluid Mech.,
948,
October 2022.
Keyword(s): Compressible flows,
Direct numerical simulations,
Double-wedge flow,
Flow modeling and control,
Hypersonic flows,
Input-output analysis,
Oblique waves,
Shock boundary layer interaction,
Reattachment vortices,
Transition to turbulence,
Weakly nonlinear analysis.
@ARTICLE{dwisidjovJFM22,
AUTHOR = {A. Dwivedi and G. S. Sidharth and M. R. Jovanovi\'c},
JOURNAL = {J. Fluid Mech.},
TITLE = {Oblique transition in hypersonic double-wedge flow},
VOLUME = {948},
MONTH = {October},
YEAR = {2022},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/dwisidjovJFM22.pdf},
KEYWORDS = {Compressible flows, Direct numerical simulations, Double-wedge flow, Flow modeling and control, Hypersonic flows, Input-output analysis, Oblique waves, Shock boundary layer interaction, Reattachment vortices, Transition to turbulence, Weakly nonlinear analysis}
}
-
H. Mohammadi,
M. Razaviyayn,
and M. R. Jovanovic.
Tradeoffs between convergence rate and noise amplification for momentum-based accelerated optimization algorithms.
2022.
Note: Submitted; also arXiv:2209.11920.
Keyword(s): Accelerated first-order algorithms,
Control for optimization,
Convergence rate,
Convex optimization,
Gradient descent,
Heavy-ball method,
Nesterov's accelerated method,
Nonnormal dynamics,
Noise amplification,
Second-order moments.
@ARTICLE{mohrazjovTAC22,
AUTHOR = {H. Mohammadi and M. Razaviyayn and M. R. Jovanovi\'c},
TITLE = {Tradeoffs between convergence rate and noise amplification for momentum-based accelerated optimization algorithms},
YEAR = {2022},
NOTE = {submitted; also arXiv:2209.11920},
PDF = {https://arxiv.org/abs/2209.11920},
KEYWORDS = {Accelerated first-order algorithms, Control for optimization, Convergence rate, Convex optimization, Gradient descent, Heavy-ball method, Nesterov's accelerated method, Nonnormal dynamics, Noise amplification, Second-order moments}
}
-
H. Mohammadi,
S. Samuelson,
and M. R. Jovanovic.
Transient growth of accelerated optimization algorithms.
IEEE Trans. Automat. Control,
2022.
Note: Doi:10.1109/TAC.2022.3162154.
Keyword(s): Accelerated first-order algorithms,
Control for optimization,
Convex optimization,
Gradient descent,
Heavy-ball method,
Integral quadratic constraints,
Nesterov's accelerated method,
Nonnormal dynamics,
Transient growth.
@ARTICLE{mohsamjovTAC22,
AUTHOR = {H. Mohammadi and S. Samuelson and M. R. Jovanovi\'c},
TITLE = {Transient growth of accelerated optimization algorithms},
JOURNAL = {IEEE Trans. Automat. Control},
YEAR = {2022},
NOTE = {doi:10.1109/TAC.2022.3162154},
PDF = {https://arxiv.org/abs/2103.08017},
KEYWORDS = {Accelerated first-order algorithms, Control for optimization, Convex optimization, Gradient descent, Heavy-ball method, Integral quadratic constraints, Nesterov's accelerated method, Nonnormal dynamics, Transient growth}
}
-
H. Mohammadi,
A. Zare,
M. Soltanolkotabi,
and M. R. Jovanovic.
Convergence and sample complexity of gradient methods for the model-free linear-quadratic regulator problem.
IEEE Trans. Automat. Control,
67(5):2435-2450,
May 2022.
Keyword(s): Data-driven control,
Gradient descent,
Gradient-flow dynamics,
Linear quadratic regulator,
Model-free control,
Nonconvex optimization,
Optimization,
Optimal control,
Polyak-Lojasiewicz inequality,
Random search method,
Reinforcement learning,
Sample complexity.
@ARTICLE{mohzarsoljovTAC22,
AUTHOR = {H. Mohammadi and A. Zare and M. Soltanolkotabi and M. R. Jovanovi\'c},
TITLE = {Convergence and sample complexity of gradient methods for the model-free linear-quadratic regulator problem},
JOURNAL = {IEEE Trans. Automat. Control},
VOLUME = {67},
NUMBER = {5},
PAGES = {2435-2450},
MONTH = {May},
YEAR = {2022},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/mohzarsoljovTAC22.pdf},
KEYWORDS = {Data-driven control, Gradient descent, Gradient-flow dynamics, Linear quadratic regulator, Model-free control, Nonconvex optimization, Optimization, Optimal control, Polyak-Lojasiewicz inequality, Random search method, Reinforcement learning, Sample complexity}
}
-
L. Ballotta,
M. R. Jovanovic,
and L. Schenato.
Can decentralized control outperform centralized? The role of communication latency.
In Proceedings of the 2022 IFAC Conference on Networked Systems,
Zurich, Switzerland,
2022.
Keyword(s): Controller architecture,
Fundamental limitations,
Networks,
Networks of dynamical systems,
Noise amplification,
Performance bounds,
Topology design.
@INPROCEEDINGS{baljovschIFAC22,
AUTHOR = {L. Ballotta and M. R. Jovanovi\'c and L. Schenato},
TITLE = {Can decentralized control outperform centralized? {T}he role of communication latency},
BOOKTITLE = {Proceedings of the 2022 IFAC Conference on Networked Systems},
YEAR = {2022},
ADDRESS = {Zurich, Switzerland},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/baljovschIFAC22.pdf},
KEYWORDS = {Controller architecture, Fundamental limitations, Networks, Networks of dynamical systems, Noise amplification, Performance bounds, Topology design}
}
-
D. Ding and M. R. Jovanovic.
Policy gradient primal-dual mirror descent for constrained MDPs with large state spaces.
In Proceedings of the 61st IEEE Conference on Decision and Control,
Cancun, Mexico,
2022.
Note: To appear.
Keyword(s): Constrained Markov decision processes,
Policy gradient methods,
Primal-dual algorithms,
Mirror descent,
Function approximation.
@INPROCEEDINGS{dinjovCDC22,
AUTHOR = {D. Ding and M. R. Jovanovi\'c},
BOOKTITLE = {Proceedings of the 61st IEEE Conference on Decision and Control},
TITLE = {Policy gradient primal-dual mirror descent for constrained {MDP}s with large state spaces},
YEAR = {2022},
ADDRESS = {Cancun, Mexico},
NOTE = {to appear},
KEYWORDS = {Constrained Markov decision processes, Policy gradient methods, Primal-dual algorithms, Mirror descent, Function approximation}
}
-
D. Ding,
C.-Y. Wei,
K. Zhang,
and M. R. Jovanovic.
Independent policy gradient for large-scale Markov potential games: sharper rates, function approximation, and game-agnostic convergence.
In Proceedings of the 39th International Conference on Machine Learning,
volume 162 of Proceedings of Machine Learning Research,
Baltimore, MD,
pages 5166-5220,
2022.
Keyword(s): Multi-agent reinforcement learning,
Independent reinforcement learning,
Policy gradient methods,
Markov potential games,
Function approximation,
Game-agnostic convergence.
@INPROCEEDINGS{dinweizhajovICML22,
AUTHOR = {D. Ding and C.-Y. Wei and K. Zhang and M. R. Jovanovi\'c},
TITLE = {Independent policy gradient for large-scale {M}arkov potential games: sharper rates, function approximation, and game-agnostic convergence},
BOOKTITLE = {Proceedings of the 39th International Conference on Machine Learning},
SERIES = {Proceedings of Machine Learning Research},
VOLUME = {162},
PAGES = {5166-5220},
YEAR = {2022},
ADDRESS = {Baltimore, MD},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/dinweizhajovICML22.pdf},
KEYWORDS = {Multi-agent reinforcement learning, Independent reinforcement learning, Policy gradient methods, Markov potential games, Function approximation, Game-agnostic convergence}
}
-
D. Ding,
K. Zhang,
T. Basar,
and M. R. Jovanovic.
Convergence and optimality of policy gradient primal-dual method for constrained Markov decision processes.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
pages 2851-2856,
2022.
Keyword(s): Constrained Markov decision processes,
Policy gradient methods,
Primal-dual algorithms.
@INPROCEEDINGS{dinzhabasjovACC22,
AUTHOR = {D. Ding and K. Zhang and T. Basar and M. R. Jovanovi\'c},
TITLE = {Convergence and optimality of policy gradient primal-dual method for constrained {M}arkov decision processes},
BOOKTITLE = {Proceedings of the 2022 American Control Conference},
PAGES = {2851-2856},
YEAR = {2022},
ADDRESS = {Atlanta, GA},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/dinzhabasjovACC22.pdf},
KEYWORDS = {Constrained Markov decision processes, Policy gradient methods, Primal-dual algorithms}
}
-
A. Dwivedi and M. R. Jovanovic.
A weakly nonlinear analysis of transition in a hypersonic flow.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
pages 4171-4176,
2022.
Keyword(s): Compressible flows,
Direct numerical simulations,
Double-wedge flow,
Flow modeling and control,
Hypersonic flows,
Input-output analysis,
Shock boundary layer interaction,
Reattachment vortices,
Transition to turbulence,
Weakly nonlinear analysis.
@INPROCEEDINGS{dwijovACC22,
AUTHOR = {A. Dwivedi and M. R. Jovanovi\'c},
TITLE = {A weakly nonlinear analysis of transition in a hypersonic flow},
BOOKTITLE = {Proceedings of the 2022 American Control Conference},
PAGES = {4171-4176},
YEAR = {2022},
ADDRESS = {Atlanta, GA},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/dwijovACC22.pdf},
KEYWORDS = {Compressible flows, Direct numerical simulations, Double-wedge flow, Flow modeling and control, Hypersonic flows, Input-output analysis, Shock boundary layer interaction, Reattachment vortices, Transition to turbulence, Weakly nonlinear analysis}
}
-
H. Mohammadi and M. R. Jovanovic.
On the noise amplification of primal-dual gradient flow dynamics based on proximal augmented Lagrangian.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
pages 926-931,
2022.
Keyword(s): Control for optimization,
Convex Optimization,
Integral quadratic constraints,
Linear matrix inequalities,
Noise amplification,
Non-smooth optimization,
Proximal algorithms,
Primal-dual gradient flow dynamics,
Primal-dual methods,
Proximal augmented Lagrangian,
Second-order moments,
Semidefinite programming.
@INPROCEEDINGS{mohjovACC22,
AUTHOR = {H. Mohammadi and M. R. Jovanovi\'c},
TITLE = {On the noise amplification of primal-dual gradient flow dynamics based on proximal augmented {L}agrangian},
BOOKTITLE = {Proceedings of the 2022 American Control Conference},
PAGES = {926-931},
YEAR = {2022},
ADDRESS = {Atlanta, GA},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/mohjovACC22.pdf},
KEYWORDS = {Control for optimization, Convex Optimization, Integral quadratic constraints, Linear matrix inequalities, Noise amplification, Non-smooth optimization, Proximal algorithms, Primal-dual gradient flow dynamics, Primal-dual methods, Proximal augmented Lagrangian, Second-order moments, Semidefinite programming}
}
-
I. K. Ozaslan,
S. Hassan-Moghaddam,
and M. R. Jovanovic.
On the asymptotic stability of proximal algorithms for convex optimization problems with multiple non-smooth regularizers.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
pages 132-137,
2022.
Keyword(s): Control for optimization,
Convex Optimization,
Douglas-Rachford splitting,
Global asymptotic stability,
Lyapunov-based analysis,
Non-smooth optimization,
Proximal algorithms,
Primal-dual gradient flow dynamics,
Primal-dual methods,
Proximal augmented Lagrangian.
@INPROCEEDINGS{ozamogjovACC22,
AUTHOR = {I. K. Ozaslan and S. Hassan-Moghaddam and M. R. Jovanovi\'c},
TITLE = {On the asymptotic stability of proximal algorithms for convex optimization problems with multiple non-smooth regularizers},
BOOKTITLE = {Proceedings of the 2022 American Control Conference},
PAGES = {132-137},
YEAR = {2022},
ADDRESS = {Atlanta, GA},
PDF = {https://viterbi-web.usc.edu/~mihailo/papers/ozamogjovACC22.pdf},
KEYWORDS = {Control for optimization, Convex Optimization, Douglas-Rachford splitting, Global asymptotic stability, Lyapunov-based analysis, Non-smooth optimization, Proximal algorithms, Primal-dual gradient flow dynamics, Primal-dual methods, Proximal augmented Lagrangian}
}
-
I. K. Ozaslan and M. R. Jovanovic.
Exponential convergence of primal-dual dynamics for multi-block problems under local error bound condition.
In Proceedings of the 61th IEEE Conference on Decision and Control,
Cancun, Mexico,
2022.
Note: To appear.
Keyword(s): Gradient flow dynamics,
Lyapunov functions,
Proximal algorithms,
Primal-dual gradient flow dynamics,
Primal-dual methods,
Proximal augmented Lagrangian,
Operator splitting.
@INPROCEEDINGS{ozajovCDC22,
AUTHOR = {I. K. Ozaslan and M. R. Jovanovi\'c},
TITLE = {Exponential convergence of primal-dual dynamics for multi-block problems under local error bound condition},
BOOKTITLE = {Proceedings of the 61th IEEE Conference on Decision and Control},
YEAR = {2022},
ADDRESS = {Cancun, Mexico},
NOTE = {to appear},
KEYWORDS = {Gradient flow dynamics, Lyapunov functions, Proximal algorithms, Primal-dual gradient flow dynamics, Primal-dual methods, Proximal augmented Lagrangian, Operator splitting}
}