Research & Education

Signals, spectra, and social systems

Current

PhD Physics · University of the Philippines Diliman · 2025 — present

Hyperspectral unmixing methodologies applied to Philippine senatorial voting patterns, treating election data as a mixed spectral signal and recovering the interpretable source components underneath.

Adviser: May T. Lim, PhD.

  1. StartedAUG 2025
  2. Qualifying examselectromagnetism, statistical mechanics, quantum mechanics, classical mechanicsAUG 2026
  3. Candidacy exam
  4. Dissertation defense

Publications

Time-resolved culture maps derived from the Integrated Values Survey data (1981–2022)

Physica A: Statistical Mechanics and its Applications 659:130317 · 2024 · doi:10.1016/j.physa.2024.130317

Euste, J.L., Arjonillo, H.C., and Saloma, C.

Monte Carlo analysis of focused Gaussian beam in scattering media: Curvature correction and Mie scattering

Optics Communications 535:129314 · 2023 · doi:10.1016/j.optcom.2023.129314

Arjonillo, H.C. and Saloma, C.

International Publication Award 2023, UP Diliman

Interests

hyperspectral unmixingcomplex systemsaudio & music information retrievalphysiological signal processing

Education

2025 — present

University of the Philippines Diliman

PhD Physics

  • Hyperspectral unmixing methodologies applied to Philippine senatorial voting patterns, treating election data as a mixed spectral signal and recovering the interpretable source components underneath.

Adviser: May T. Lim, PhD.

Selected coursework
  • Physics of Terrestrial Planets and Planetary Satellites
  • Mathematical Methods of Physics II — nonlinear dynamics, taught from Strogatz
  • High-Performance Computing Methods in Applied Physicsin progress
Artifacts
2021 — 2024

University of the Philippines Diliman

MS Physics

  • Thesis: Measuring intra-country cultural diversity.

Adviser: Caesar A. Saloma, PhD.

Selected coursework
  • The Physics of Complexity in Biological Systems
  • Modern Optics I — taught from Born & Wolf
Conference proceedings
2014 — 2019

University of the Philippines Diliman

BS Applied Physics (Instrumentation Physics), cum laude

  • Thesis: Towards a more accurate Monte Carlo analysis of propagating focused Gaussian beam in scattering media.

Adviser: Caesar A. Saloma, PhD.

2012 — 2016

Associated Board of the Royal Schools of Music

Classical training — violin & piano

  • Diploma in Music Performance, violin (2016).
  • Grade 8 violin (Distinction) and piano (Merit); Grade 5 music theory (Merit).