Kleyton da Costa

Research Scientist and Engineer

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Education


University College London — United Kingdom

Jun 2026 – present

Ph.D. · Computer Science

Pontifical Catholic University of Rio de Janeiro (PUC-Rio) — Brazil

Mar 2023 – Mar 2025

M.Sc. · Computer Science

Federal Rural University of Rio de Janeiro (UFRRJ) — Brazil

Mar 2017 – Dec 2021

B.Sc. · Economics

Work Experience


Holistic AI · London, UK

  • Senior Research ScientistOct 2026 – present
  • Artificial Intelligence EngineerSep 2025 – Oct 2026
  • Research ScientistOct 2021 – Sep 2025
  • Summer InternJul 2021 – Oct 2021

PUC-Rio · Rio de Janeiro, Brazil

  • Research EngineerMar 2023 – Aug 2025

State Government of Rio de Janeiro · Rio de Janeiro, Brazil

  • Data Science AdvisorJan 2022 – Mar 2023

Selected Research Papers


  • COSTA, K., MODENESI, B. Perspectives on Tsallis Statistics for Artificial Intelligence. (Physica A, 2026) [pdf]
  • COSTA, K., MODENESI, B. GraphNetz: Statistical Benchmarking of Graph Neural Networks with Paired Tests and Rank Aggregation (LoG Conference, 2026) [pdf]
  • COSTA, K., KOSHIYAMA, A., KANOULAS, D., TRELEAVEN, P. A Survey on Predictive Safety in Embodied AI. (Pre-print, 2026). [pdf]
  • KUMAR, R., KOSHIYAMA, A., COSTA, K., et al. Deep learning model fragility and implications for financial stability and regulation. Bank of England Working Paper, 2023. [pdf]
  • MUNOZ, C.; COSTA, K.; MODENESI, B.; KOSHIYAMA, A. Evaluating Explainability in Machine Learning Predictions through Explainer-Agnostic Metrics. 2024. [pdf]

References


  • Bernardo Modenesi (Professor at University of Utah)
  • Ivan Menezes (Professor at PUC-Rio)

Updated October 2026