Research
Research Interest
Stochastic optimization methods for machine learning, deep learning, and reinforcement learning.
Publications
D. T. Phan, L. M. Nguyen, P. Murali, N. H. Pham, H. Liu, J. Kalagnanam. Regression Optimization for System-level Production Control. American Control Conference (ACC), 2021.
Q. Tran-Dinh, N. H. Pham, D. T. Phan, and L. M. Nguyen. A Hybrid Stochastic Optimization Framework for Composite Nonconvex Optimization. Mathematical Programming, 2021. [Preprint]
Q. Tran-Dinh, N. H. Pham, and L. M. Nguyen. Stochastic Gauss-Newton Algorithms for Nonconvex Compositional Optimization. The 37th International Conference on Machine Learning, 2020 [Preprint] [Python Code]
N. H. Pham, L. M. Nguyen, D. T. Phan, and Q. Tran-Dinh. ProxSARAH: An Efficient Algorithmic Framework for Stochastic Composite Nonconvex Optimization. Journal of Machine Learning Research, 21:110, 1-48 , 2020. [Preprint] [Python Code]
N. H. Pham, L. M. Nguyen, D. T. Phan, P. H. Nguyen, M. van Dijk, and Q. Tran-Dinh. A Hybrid Stochastic Policy Gradient Algorithm for Reinforcement Learning. The 23rd International Conference on Artificial Intelligence and Statistics (AISTATS 2020), 2020 [Preprint] [Python Code]
H. M. La, T. H. Dinh, N. H. Pham, Q. P. Ha, and A. Q. Pham. Automated robotic monitoring and inspection of steel structures and bridges. Robotica, Cambridge University Press, 1-21, 2018.
T. D. Le, S. Gibb, N. H. Pham, H. M. La, L. Falk, and T. Berendsen. Autonomous Robotic System using Non-Destructive Evaluation methods for Bridge Deck Inspection. In Proceedings of the 2017 IEEE International Conference on Robotics and Automation (ICRA), May 29-June 3, 2017, Singapore. [Preprint]
N. H. Pham and H. M. La. Design and Implementation of an Autonomous Robot for Steel Bridge Inspection. In Proceedings of the 54th Annual Allerton Conference on Communication, Control, and Computing, pages 1-8, Sept. 27-30, 2016, Urbana-Champaign, Illinois, USA. [Preprint]
N. H. Pham, H. M. La, Q. P. Ha, S. N. Dang, A. H. Vo, and Q. H. Dinh. Visual and 3D Mapping for Steel Bridge Inspection Using a Climbing Robot. The 33rd International Symposium on Automation and Robotics in Construction and Mining (ISARC), pages 1-8, July 18-21, 2016, Auburn, Alabama, USA. [Preprint]
T.-D. D. Phan, N. H. Pham, K.-N. Le-Huu, and A.-V. D. Dinh. Quadrotor Helicopter: A Practical Design Approach. IEICE International Conference on Integrated Circuits, Design and Verification, pp.156-163, 2013, Ho Chi Minh, Vietnam.
Preprints
N. H. Pham, L. M. Nguyen, D. T. Phan, and Q. Tran-Dinh. Federated Learning with Randomized Douglas-Rachford Splitting Methods. arXiv:2103.03452, 2021 [Preprint]
T. T. Doan, L. M. Nguyen, N. H. Pham, and J. Romberg. Convergence Rates of Accelerated Markov Gradient Descent with Applications in Reinforcement Learning. arXiv:2002.02873, 2020 [Preprint]
T. T. Doan, L. M. Nguyen, N. H. Pham, and J. Romberg. Finite-Time Analysis of Stochastic Gradient Descent under Markov Randomness. arXiv:2003.10973, 2020 [Preprint]