Dohyeong Ki

Dohyeong Ki

PhD Student in Statistics at UC Berkeley

Research

Submitted/Under Revision Articles

  • Ki, D. and Guntuboyina, A. (2026+) What functions does XGBoost learn? Submitted. arXiv
    • ICSDS Student Travel Award, Institute of Mathematical Statistics, 2025

Publications

  • Ki, D. and Guntuboyina, A. (2026) Totally concave regression. Journal of the American Statistical Association, accepted for publication. arXiv code journal
    • KISS Outstanding Student Paper Award, Korean International Statistical Society, 2025
    • IMS Hannan Graduate Student Travel Award, Institute of Mathematical Statistics, 2024
  • Ki, D., Fang, B., and Guntuboyina, A. (2024) MARS via LASSO. Annals of Statistics, 52(3), 1102-1126. arXiv code journal
    • IISA Student Paper Award, International Indian Statistical Association, 2023
    • SFASA Student Travel Award, San Francisco Bay Area Chapter of the American Statistical Association, 2022

  • Ki, D. and Park, B. U. (2021) Intrinsic Hölder classes of density functions on Riemannian manifolds and lower bounds to convergence rates. Statistics & Probability Letters, 169, 108959. journal

  • Han, K. and Ki, D. (2020) Better bootstrapping for approximate homomorphic encryption. In Cryptographer’s Track at the RSA Conference (CT-RSA) (pp. 364–390), Cham: Springer. conference

Software

  • regmdc: R package for fitting nonparametric regression models with mixed derivative constraints. github