Joshua Rooijakkers

I am a visiting researcher in the Department of Statistical Science at University College London (UCL) in the Fundamentals of Statistical Machine Learning group under the supervision of Jeremias Knoblauch and Matias Altamirano. My research focuses on robust Bayesian machine learning methods.

My research visit is supported by the Dutch National Culture Fund (Cultuurfonds).

Previously, I completed my bachelor’s and master’s degree in Econometrics at Erasmus University Rotterdam, with a minor in AI Engineering at TU Delft.

News

Oct 31, 2025	Finished writing my first paper Multi-Output Robust and Conjugate Gaussian Processes!
Oct 22, 2025	Started my research visit at UCL.
Apr 11, 2025	Our team reached 2nd place at the World Championships Econometrics!

Selected publications

Preprint

Multi-Output Robust and Conjugate Gaussian Processes

Joshua Rooijakkers, Leiv Rønneberg, François-Xavier Briol, and 2 more authors

arXiv preprint arXiv:2510.26401, 2025

arXiv Bib Code

@article{rooijakkers2025multi,
  title = {Multi-Output Robust and Conjugate Gaussian Processes},
  author = {Rooijakkers, Joshua and R{\o}nneberg, Leiv and Briol, Fran{\c{c}}ois-Xavier and Knoblauch, Jeremias and Altamirano, Matias},
  journal = {arXiv preprint arXiv:2510.26401},
  year = {2025},
}