Home / Faculty / Velasco, Arrianne Crystal

Velasco, Arrianne Crystal

Associate Professor
RoomMath Building 258

Research Interests
Numerical analysis. Numerical optimization. Inverse problems. Partial differential equations.
  • Education
    • PhD Mathematics
      Université de Picardie Jules Verne

      Dissertation: Numerical methods for the resolution of the forward and the inverse problems for Electrical Impedance Tomography

    • MS Applied Mathematics
      University of the Philippines Diliman

      Thesis: A multigrid approach for state-constrained optimal control problems with bilinear state equation

    • BS Mathematics
      University of the Philippines Diliman

      Thesis: A modification of the EPQ model for perishable products with inventory-dependent demand

  • Teaching

    TEACHING

    Graduate Courses

    • Math 271.1 – Numerical Analysis I
    • Math 280 – Linear Programming

    Undergraduate Courses

    • Math 20 – Precalculus: Functions and their Graphs
    • Math 21 – Elementary Analysis I
    • Math 23 – Elementary Analysis III
    • Math 122 – Differential Equations and Applications
    • Math 171 – Numerical Analysis
    • Math 180.1 – Operations Research I
    • Math 180.2 – Operations Research II

    Mentoring

    Graduate Students

    • Rose Anne Alas (PhD Math, Aug 2024), The Use of Sensitivity Analysis in the Resolution of the Continuum Model for Electrical Impedance Tomography
    • Crisanto Abas (PhD Math, Aug 2024), Numerical Analysis of a Water Quality Model using the Finite Element Method and Applications to Philippine River Systems, co-advised with Dr. Carlene P.C. Pilar-Arceo
    • Kyrho Corum (MS Applied Mathematics – OA, Jun 2025), Assessing the role of Wolbachia in reducing dengue spread in the Philippines
    • Ken Matthew Oliva (MS Applied Mathematics – OA, Jun 2023), Numerical Simulation of the 2020 Taal Volcanic Ash Dispersion, co-advised with Dr. Rhudaina Mohammad
    • Erika Antonette Enriquez (MS Applied Mathematics – OA, Jun 2022), Philippine Eagle Optimization Algorithm

    Undergraduate Students

    • Rae Coleen AgbulosAssessing the Effectiveness of the Philippine Eagle Optimization Algorithm in Classical and Applied Optimization Problems, Jun 2025
    • Jason Rex Alfonso, Data-Driven Transport Maps Using Adaptive Bandwidth Maximum Mean Discrepancy, Jun 2025
    • Jhon Christian Rozano, Numerical Analysis of Multigrid Methods in Solving Partial Differential Equations and Optimal Control Problems, Jun 2025
    • Ken Fritz Arnold Rey, Approximation of Heat Kernels using Gaussian Quadratures, co-advised with Dr. Mark Jason Celiz, Jun 2024
    • Hans Mingala, On the study of Chimp Optimization Algorithm, Jun 2024
    • Jedd Athan Fernandez, On the Use of the Multigrid Method in Solving Partial Differential Equations, sole adviser, Jun 2023
    • Eliana Tolentino, The network simplex method for minimum cost flow problems, Jun 2023
    • Kyrho Corum, Optimization of Storm Surge Barrier Closure Applied to the Venice Lagoon, Jun 2022
    • Dwight Anthony Palma, Optimal Control Strategies Applied to a Mathematical Model for the Epidemiology of Diabetes, co-advised with Thomas Herald Vergara, M.Sc., Jun 2022
    • Raina Visitacion, Mathematical Modeling and Optimal Control of HIV/AIDS in the Philippines, co-advised with Thomas Herald Vergara, M.Sc., Jun 2022
    • John Alfred Paragas, On the Whale Optimization Algorithm, Jun 2021
  • Publications
    1. Bernardo, R. C., Enriquez, E. A., Mendoza, R., Reyes, R.,  Velasco, A. C. (2026). Nature-inspired optimization, the Philippine Eagle, and cosmological parameter estimation. Astronomy and Computing, 54(101026)
    2. Di Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., … , Velasco, A.C., … , Tamayo D., Valls-Gabaud, D. (2025). The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics. Physics of the Dark Universe, 49(101965).
    3. R.A. Alas, A.C. Velasco. (2024). A sensitivity-based algorithm approach in reconstructing images in Electrical Impedance Tomography. IEEE Access, vol. 12, pp. 146560-146574, doi: 10.1109/ACCESS.2024.3473616.
    4. C. Abas, A.C. Velasco, C.P.C. Pilar-Arceo. (2024). Application of a reaction-based water quality model to the TDS concentration of the Pasig River. PeerJ 12:e18076.
    5. R. Pino, V.M. Mendoza, E.A. Enriquez, A.C. Velasco, R. Mendoza. (2023). An optimization model with simulation for optimal regional allocation of COVID-19 vaccines. Healthcare Analytics, 100244, ISSN 2772-4425.
    6. K.I. Cabanilla, E.A. Enriquez, A.C. Velasco, V.M. Mendoza, R. Mendoza. (2022). “Optimal selection of COVID-19 vaccination sites in the Philippines at the municipal level.” PeerJ 10:e14151.
    7. E.A. Enriquez, R. Mendoza and A.C. Velasco. (2022). Philippine Eagle Optimization Algorithm. IEEE Access, vol. 10, pp. 29089-29120, doi: 10.1109/ACCESS.2022.3158357.
    8. A.C. Velasco, M. Darbas, R. Mendoza. (2021). Numerical Resolution of the Electrical Impedance Tomography Inverse Problem with Fixed Inclusion. International Journal of Mathematics and Computer Science, 16(3), 1063-1076.
    9. M. Darbas, J. Heleine, R. Mendoza, A.C. Velasco. (2021). Sensitivity analysis of the complete electrode model for electrical impedance tomography. AIMS Mathematics, 6(7), 7333–7366.
    10. A.C. Velasco, M. Darbas, R. Mendoza, M. Bacon, J.C. de Leon. (2020). Comparative Study of Heuristic Algorithms for Electrical Impedance Tomography. Philippine Journal of Science, 149(3), 747-772.