About me

I am a final-year PhD student in the Mathematics Department at University of Houston. I am part of the SCOPA (Scientific Computing, Optimization, and Parallel Algorithms) lab working under the advisement of Andreas Mang and Yunhui He. My research focuses on numerical methods for inverse problems and optimal control. Currently, I’m developing efficient solvers for large-scale optimization problems, with a particular interest in diffeomorphic image registration. My work involves studying optimal control problems governed by transport equations and designing multigrid preconditioners for the reduced space Hessian in Newton-Krylov frameworks. My broader interests include scientific computing, numerical linear algebra, and applications of mathematics to imaging and data science. I currently serve as the student advisor of the UH chapter of AWM (Association for Women in Mathematics), where I previously served as president. 

Education

• Ph.D. Mathematics, University of Houston, August 2025
• M.S. Mathematics, The University of Southern Mississippi, August 2020 (thesis)
• B.S. Mathematics, University of Dhaka, January 2017

Publications

• Multigrid Preconditioning of the Reduced Space Hessian for Optimal Control Problems Governed by Transport Equations, in preparation.
  J. Chhoa, Y. He, and A. Mang.

• Metric Properties of Partial and Robust Gromov-Wasserstein Distances, preprint published November 2024.
  J. Chhoa, M. Ivanitskiy, F. Jiang, S. Li, D. McBride, T. Needham, and K. O’Hare.

• Supervised Dimension Reduction via Local Gradient Elongation, accepted October 2024, WiSDM 2023 Springer Proceedings “Advances in Data Science”.
  J. Chhoa, L. Huang, A. Little, A. Maurais, K. Morris, M. van der Walt, G. Verma, and R. Wang.

Events

• 08/2025 | I am going to participate in the Research Collaboration Workshop, “Randomized Numerical Linear Algebra” (RNLA), Institute for Pure & Applied Mathematics – UCLA, Los Angeles, CA.

• 08/2025 | I am going to participate in the 2025 Research Collaboration Workshop in Science of Data and Mathematics (WiSDM) conference, University of North Carolina, Chapel Hill, NC.

• 03/2025 | I presented my research at the Methods for Image Processing and Numerical Modeling in Computational Medicine Part I mini-symposium, SIAM Conference on Computational Science and Engineering (CSE25), Fort Worth, TX.

• 06/2024 | I participated in the American Mathematical Society’s Mathematics Research Community (MRC) conference on Mathematics of Adversarial, Interpretable, and Explainable AI, Java Center, NY.

• 05/2024 | I presented my research at the Frontiers in Deep Image Reconstruction, Restoration Across Diverse Modalities mini-symposium, SIAM Conference on Imaging Science (IS24), Atlanta, GA.