Nikolas Kougioulis

Hi 👋, I’m Nikolas.

I am a Research Engineer at Foundation for Research & Technology Hellas (FORTH) in Heraklion, affilated with the MensXMachina group under the direction of Ioannis Tsamardinos, Sofia Triantafillou and Vassilis Christophides. Currently, I work on the intersection between Causal Discovery methods and Deep Learning, in both theoretical and practical aspects.

I hold a Masters degree in Computer Science & Engineering from the Department of Computer Science at the University of Crete. Previously, I obtained my first degree in Mathematics from Aristotle University of Thessaloniki. My broad interests involve Causality, Machine Learning and Artificial Intelligence. I speak 🇬🇷, 🇬🇧 and 🇫🇷.

My time is spent between Thessaloniki and Heraklion. I also enjoy learning 📚, teaching, travelling (inside and out), weightlifting 🏋️ and indoor rowing 🚣. I also hold an everliving passion for motorsport and British classic cars.

updates

📣 Our preprint Large Causal Models for Temporal Causal Discovery is available on arXiv! https://arxiv.org/abs/2602.18662	Feb 24, 2026
🚀 Our preprint Temporal Causal-based Simulation for Realistic Time-series Generation is available on arXiv: https://arxiv.org/abs/2506.02084	Jun 04, 2025

post feed

Dec 31, 2025	Beyond Prediction: Why Causality Matters
Jun 05, 2025	Glove80: Keyboard Endgame?
Jan 03, 2025	Gradient Wars - Reparametrization vs REINFORCE

selected publications

arXiv

Temporal Causal-based Simulation for Realistic Time-series Generation

Nikolaos Gkorgkolis, Nikolaos Kougioulis, MingXue Wang, and 4 more authors

2025

DOI Bib HTML PDF

@misc{gkorgkolis2025temporal,
  title = {Temporal Causal-based Simulation for Realistic Time-series Generation},
  author = {Gkorgkolis, Nikolaos and Kougioulis, Nikolaos and Wang, MingXue and Caglayan, Bora and Tonon, Andrea and Simionato, Dario and Tsamardinos, Ioannis},
  year = {2025},
  eprint = {2506.02084},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://arxiv.org/abs/2506.02084},
  doi = {https://doi.org/10.48550/arXiv.2506.02084},
}

arXiv

Large Causal Models for Temporal Causal Discovery

Nikolaos Kougioulis, Nikolaos Gkorgkolis, MingXue Wang, and 4 more authors

2026

DOI Bib HTML PDF

@article{kougioulis2026large,
  title = {Large Causal Models for Temporal Causal Discovery},
  author = {Kougioulis, Nikolaos and Gkorgkolis, Nikolaos and Wang, MingXue and Caglayan, Bora and Simionato, Dario and Tonon, Andrea and Tsamardinos, Ioannis},
  year = {2026},
  eprint = {2602.18662},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://arxiv.org/abs/2602.18662},
  doi = {https://doi.org/10.48550/arXiv.2602.18662},
}