📝 Publications

Thumbnail for Model-Based Meta-Learning for Algorithm Discovery
Model-Based Meta-Learning for Algorithm Discovery

Theo Wolf, Alexander David Goldie, Jarek Luca Liesen, Uljad Berdica, Mattie Fellows, Jakob Nicolaus Foerster

Workshop, released in ICLR 2026 Workshop on World Models
Reinforcement LearningMeta-learningWorld Models
Mar 5, 2026
Thumbnail for Evolution Strategies at the Hyperscale
Evolution Strategies at the Hyperscale

Bidipta Sarkar, Mattie Fellows, Juan Duque, Alistair Letcher, Antonio León Villares, Anya Sims, Clarisse Wibault, Dmitry Samsonov, Dylan Cope, Jarek Liesen, Kang Li, Lukas Seier, Theo Wolf, Uljad Berdica, Valentin Mohl, Alexander D. Goldie, Aaron Courville, Karin Sevegnani, Shimon Whiteson, Jakob Foerster

Poster, released in ICML 2026
Evolution StrategiesOptimizationReinforcement Learning
Feb 16, 2026
Thumbnail for Imagined Autocurricula
Imagined Autocurricula

Ahmet H. Güzel*, Matthew Thomas Jackson, Jarek Luca Liesen, Tim Rocktäschel, Jakob Nicolaus Foerster, Ilija Bogunovic, Jack Parker-Holder

Poster, released in NeurIPS 2025
Reinforcement LearningWorld ModelsUnsupervised Environment Design
Sep 11, 2025
Thumbnail for Unifloral: Unified Offline Reinforcement Learning
Unifloral: Unified Offline Reinforcement Learning

Matthew Thomas Jackson*, Uljad Berdica*, Jarek Liesen*

Software, released in GitHub
Reinforcement LearningOffline RLAccelerated RLJax
Apr 15, 2025
Thumbnail for A Clean Slate for Offline Reinforcement Learning
A Clean Slate for Offline Reinforcement Learning

Matthew Thomas Jackson*, Uljad Berdica*, Jarek Liesen*, Shimon Whiteson, Jakob Nicolaus Foerster

Oral, released in NeurIPS 2025
Reinforcement LearningOffline RL
Apr 15, 2025
Thumbnail for NAVIX: Scaling MiniGrid Environments with JAX
NAVIX: Scaling MiniGrid Environments with JAX

Eduardo Pignatelli, Jarek Liesen, Robert Tjarko Lange, Chris Lu, Pablo Samuel Castro, Laura Toni

Poster, released in NeurIPS 2025
Accelerated RLJax
Jul 28, 2024
Thumbnail for Discovering Minimal Reinforcement Learning Environments
Discovering Minimal Reinforcement Learning Environments

Jarek Liesen, Chris Lu, Andrei Lupu, Jakob N. Foerster, Henning Sprekeler, Robert T. Lange

Preprint, released in ArXiv
Reinforcement LearningMeta-learning
Jun 18, 2024
Thumbnail for Rejax: Hardware-accelerated RL algorithms in pure Jax
Rejax: Hardware-accelerated RL algorithms in pure Jax

Jarek Liesen, Chris Lu, Robert Lange

Software, released in GitHub
Accelerated RLJax
Jun 3, 2024
Thumbnail for Behaviour Distillation
Behaviour Distillation

Andrei Lupu, Chris Lu, Jarek Luca Liesen, Robert Tjarko Lange, Jakob Nicolaus Foerster

Poster, released in ICLR 2024
Reinforcement LearningMeta-learningKnowledge Distillation
Jan 16, 2024