Diego Perez Liebana

Distinguished Researcher, University Carlos III de Madrid (Spain)

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University Carlos III de Madrid

Madrid, Spain

diego.perez@uc3m.es

I’m a Distinguished Researcher at Unviersity Carlos III de Madrid (Spain), under the ATRAE program. Before this, I was a Senior Lecturer in Computer Games and Artificial Intelligence at Queen Mary University of London. I hold a Ph.D. in Computer Science from the University of Essex and a Master’s degree in Computer Science from Universidad Carlos III de Madrid.

My research focuses on Artificial Intelligence for games, tree search, evolutionary computation, and statistical forward planning methods such as Monte Carlo Tree Search and Rolling Horizon Evolutionary Algorithms. I am especially interested in applying these methods to modern video games, tabletop board games, and general game-playing systems.

I have authored more than 150 papers in Game AI, published in leading conferences and journals in computational intelligence, games, and evolutionary computation. I was General Chair of IEEE CoG 2019, and I have helped organize international Game AI competitions including the Physical Travelling Salesman Competition and the General Video Game AI Competition.

Before academia, I worked in the videogames industry as a game programmer and software engineer, developing games and AI tools for commercial projects. I now teach modules related to game development and Artificial Intelligence for games.

selected publications

  1. eberhardinger manuel and goodman james and dockhorn alexander and perez-liebana diego and gaina raluca d. and çakmak duygu and maghsudi setareh and lucas simon from code to play: benchmarking program search for games using large language models journal tog game-ai large-language-models game-ai journal large-language-models tog journal selected year-2025 2025
    From Code to Play: Benchmarking Program Search for Games Using Large Language Models
    Manuel Eberhardinger , James Goodman , Alexander Dockhorn , and 5 more authors
    IEEE Transactions on Games (TOG), 2025
  2. goodman james and perez-liebana diego and lucas simon seeding for success: skill and stochasticity in tabletop games journal tog game-ai tabletop-games game-ai journal tabletop-games tog journal selected year-2025 2025
    Seeding for Success: Skill and Stochasticity in Tabletop Games
    James Goodman , Diego Perez-Liebana, and Simon Lucas
    IEEE Transactions on Games (TOG), 2025
  3. nguyen dien and perez-liebana diego and lucas simon json-bag: a generic game trajectory representation conference cog game-ai cog conference game-ai conference selected year-2025 2025
    JSON-Bag: A generic game trajectory representation
    Dien Nguyen , Diego Perez-Liebana, and Simon Lucas
    In IEEE Conference on Games (CoG) , 2025
  4. balla martin and long george and goodman james and gaina raluca and perez-liebana diego pytag: tabletop games for multi-agent reinforcement learning journal other game-ai multi-agent-rl multi-agent-systems reinforcement-learning tabletop-games game-ai journal multi-agent-rl multi-agent-systems other reinforcement-learning tabletop-games journal selected year-2024 2024
    PyTAG: Tabletop Games for Multi-Agent Reinforcement Learning
    Martin Balla , George Long , James Goodman , and 2 more authors
    2024
  5. jeurissen dominik and perez-liebana diego and gow jeremy and çakmak duygu and kwan james playing nethack with llms: potential & limitations as zero-shot agents conference cog game-ai large-language-models cog conference game-ai large-language-models conference selected year-2024 2024
    Playing NetHack with LLMs: Potential & Limitations as Zero-Shot Agents
    Dominik Jeurissen , Diego Perez-Liebana, Jeremy Gow , and 2 more authors
    In IEEE Conference on Games (CoG) , 2024
  6. xu linjie and dockhorn alexander and perez-liebana diego elastic monte carlo tree search journal tog game-ai monte-carlo-tree-search game-ai journal monte-carlo-tree-search tog journal selected year-2023 2023
    Elastic Monte Carlo Tree Search
    Linjie Xu , Alexander Dockhorn , and Diego Perez-Liebana
    IEEE Transactions on Games (ToG), 2023
  7. goodman james and perez-liebana diego and lucas simon multitree mcts in tabletop games conference cog game-ai monte-carlo-tree-search tabletop-games cog conference game-ai monte-carlo-tree-search tabletop-games conference selected year-2022 2022
    MultiTree MCTS in Tabletop Games
    James Goodman , Diego Perez-Liebana, and Simon Lucas
    In Proceedings of the IEEE Conference on Games (CoG) , 2022
  8. gaina raluca d. and devlin sam and lucas simon m. and perez-liebana diego rolling horizon evolutionary algorithms for general video game playing journal tog evolutionary-computation game-ai general-game-playing statistical-forward-planning evolutionary-computation game-ai general-game-playing journal statistical-forward-planning tog journal selected year-2021 2021
    Rolling Horizon Evolutionary Algorithms for General Video Game Playing
    Raluca D. Gaina , Sam Devlin , Simon M. Lucas , and 1 more author
    IEEE Transactions on Games, 2021
  9. perez-liebana diego and lucas simon m. and gaina raluca d. and khalifa ahmed and togelius julian and liu jialin general video game artificial intelligence book other game-ai general-game-playing book game-ai general-game-playing other book selected year-2019 2019
    General Video Game Artificial Intelligence
    Diego Perez-Liebana, Simon M. Lucas , Raluca D. Gaina , and 3 more authors
    2019
  10. perez-liebana diego and liu jialin and khalifa ahmed and gaina raluca d. and togelius julian and lucas simon m. general video game ai: a multi-track framework for evaluating agents games and content generation algorithms journal tog game-ai general-game-playing procedural-content-generation game-ai general-game-playing journal procedural-content-generation tog journal selected year-2019 2019
    General Video Game AI: a Multi-Track Framework for Evaluating Agents, Games and Content Generation Algorithms
    Diego Perez-Liebana, Jialin Liu , Ahmed Khalifa , and 3 more authors
    IEEE Transactions on Games, 2019
  11. perez-liebana diego and nicolau miguel evolving behaviour tree structures using grammatical evolution bookchapter other evolutionary-computation game-ai bookchapter evolutionary-computation game-ai other chapter selected year-2018 2018
    Evolving Behaviour Tree Structures Using Grammatical Evolution
    Diego Perez-Liebana, and Miguel Nicolau
    In Handbook of Grammatical Evolution , 2018
  12. perez diego adaptive controllers for real-time games phd games planning optimisation evolutionary computation selected year-2015 2015
    Adaptive Controllers for Real-Time Games
    Diego Perez
    PhD Thesis, University of Essex, Jan 2015