Dr Diego Perez-Liebana

Senior Lecturer

School of Electronic Engineering and Computer Science
Queen Mary University of London

diego.perez@qmul.ac.uk

www.qmul.ac.uk/eecs/people/profiles/perez-liebanadiego.html

Centre for Multimodal AI

Research
Publications
Grants

Research

Artificial Intelligence, Games, Tree Search, Evolutionary Computation

Interests

My research is centred in the application of Artificial Intelligence to games, Reinforcement Learning and Evolutionary Computation. At the moment, I am especially interested on General Video Game Playing, which involves the creation of content and agents that play any real-time game that is given to it. He has published more than 60 papers in leading conferences and journals with 2 best paper awards, a BCS Intelligence Prize, and 1,900+ citations. Applying search algorithms, evolutionary computation and reinforcement learning to games, he is the main organizer of popular game AI competitions (GVGAI, MARLO) - securing substantial industry funding by MSR and Google Deepmind, general chair of the 2019 IEEE Conference on Games, track chair of academic (IEEE-CEEC, IEEE-CIG, ACM-FDG) and industry (nucl.ai) game conferences, organiser of game AI workshops and meetups, and frequently invited speaker at industry events like the London Games Festival. He is currently co-supervising 5 PhD students. As QMUL?s IGGI industry liaison, he is drawing on his extensive games industry experience, with several published PC and console titles and developed game AI tools under his belt.

Publications

Publications of specific relevance to the Centre for Multimodal AI

2024

Guest Editorial: Special Issue on Human Centered AI in Game Evaluation
Denisova A, Perez-Liebana D, Volz V, Frommel J and Asadi S
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 16 (4), 742-745.

DOI 10.1109/tg.2024.3507232

01-12-2024

STEP: A Framework for Automated Point Cost Estimation
Long GEM, Perez-Liebana D and Samothrakis S
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee), 1-10.

DOI 10.1109/tg.2024.3450992

QMRO

28-08-2024

Strategy Game-Playing with Size-Constrained State Abstraction
Xu L, Perez-Liebana D and Dockhorn A
2024 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog60054.2024.10645643

08-08-2024

Higher Replay Ratio Empowers Sample-Efficient Multi-Agent Reinforcement Learning
Xu L, Liu Z, Dockhorn A, Perez-Liebana D, Wang J, Song L and Bian J
2024 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog60054.2024.10645658

08-08-2024

Measuring Randomness in Tabletop Games
Goodman J, Perez-Liebana D and Lucas S
2024 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog60054.2024.10645623

QMRO

08-08-2024

Skill Depth in Tabletop Board Games
Goodman J, Perez-Liebana D and Lucas S
2024 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog60054.2024.10645624

QMRO

08-08-2024

Playing NetHack with LLMs: Potential & Limitations as Zero-Shot Agents
Jeurissen D, Perez-Liebana D, Gow J, Çakmak D and Kwan J
2024 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog60054.2024.10645630

08-08-2024

Unveiling modern board games: an ML-based approach to BoardGameGeek data analysis
Nguyen D, Kritz J, Gaina RD and Perez-Liebana D
2024 IEEE Conference on Games (CoG). vol. 00, 1-4.

DOI 10.1109/cog60054.2024.10645644

QMRO

08-08-2024

PyTAG: Tabletop Games for Multi-Agent Reinforcement Learning
Balla M, Long G, Goodman J, Gaina R and Perez-Liebana D
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers, 1-10.

DOI 10.1109/TG.2024.3404133

QMRO

22-05-2024

TotalBotWar: An Innovative AI Challenge and Competition for Pseudo Real-time Multi-action games
Montoliu R, Estaben A, Díaz C, Fuster S and Pérez-Liebana D
CEV23: Congreso Español de Videojuegos. vol. 3599

QMRO

01-01-2024

2023

Beyond Playing to Win: Creating a Team of Agents With Distinct Behaviors for Automated Gameplay
Guerrero-Romero C, Lucas S and Perez-Liebana D
Ieee Transactions On Games vol. 15 (3), 469-482.

DOI 10.1109/TG.2023.3241864

QMRO

01-09-2023

Balancing Wargames through Predicting Unit Point Costs
Long GEM, Perez-Liebana D and Samothrakis S
2023 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog57401.2023.10333152

QMRO

24-08-2023

PyTAG: Challenges and Opportunities for Reinforcement Learning in Tabletop Games
Balla M, Long GEM, Jeurissen D, Goodman J, Gaina RD and Perez-Liebana D
2023 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cog57401.2023.10333223

QMRO

24-08-2023

Predictive Models and Monte Carlo Tree Search: A Pipeline for Believable Agents
Pacheco C and Perez-Liebana D
2023 IEEE Conference on Games (CoG). vol. 00, 1-4.

DOI 10.1109/cog57401.2023.10333155

QMRO

24-08-2023

A case study in AI-assisted board game design
Goodman J, Wallat A, Perez-Liebana D and Lucas S
2023 IEEE Conference on Games (CoG). vol. 00, 1-4.

DOI 10.1109/cog57401.2023.10333138

QMRO

24-08-2023

Following the Leader in Multiplayer Tabletop Games
Goodman J, Perez-Liebana D and Lucas S
Proceedings of the 18th International Conference on the Foundations of Digital Games., 1-11.

DOI 10.1145/3582437.3582449

QMRO

12-04-2023

Elastic Monte Carlo Tree Search
Xu L, Dockhorn A and Perez-Liebana D
Ieee Transactions On Games

DOI 10.1109/TG.2023.3282351

QMRO

01-01-2023

2022

Visualising Multiplayer Game Spaces
Goodman J, Perez D and Lucas SM
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers

DOI 10.1109/TG.2021.3138561

QMRO

28-12-2022

ARCIDUCA: Annotating Reference and Coreference In Dialogue Using Conversational Agents in games
Poesio M, Bartle R, Chamberlain J, Hough J, Madge C, Perez-Liebana D, Purver M and Yu J

QMRO

23-08-2022

MultiTree MCTS in Tabletop Games
Goodman J, Perez-Liebana D and Lucas S
IEEE Conference on Games. vol. 2022-August, 292-299.

DOI 10.1109/CoG51982.2022.9893605

QMRO

01-01-2022

Task Relabelling for Multi-task Transfer using Successor Features
Balla M and Perez-Liebana D
IEEE Conference on Games. vol. 2022-August, 353-360.

DOI 10.1109/CoG51982.2022.9893550

QMRO

01-01-2022

2021

Discrete versus Ordinal Time-Continuous Believability Assessment
Pacheco C, Melhart D, Liapis A, Yannakakis GN and Perez-Liebana D
2021 9th International Conference on Affective Computing and Intelligent Interaction Workshops and Demos (ACIIW). vol. 00, 1-7.

DOI 10.1109/aciiw52867.2021.9666288

01-10-2021

Trace It Like You Believe It: Time-Continuous Believability Prediction
Pacheco C, Melhart D, Liapis A, Yannakakis GN and Perez-Liebana D
2021 9th International Conference on Affective Computing and Intelligent Interaction (ACII).

DOI 10.1109/ACII52823.2021.9597457

QMRO

28-09-2021

Student-Initiated Action Advising via Advice Novelty
Ilhan E, Gow J and Perez D
Ieee Transactions On Games

DOI 10.1109/TG.2021.3113644

QMRO

22-09-2021

MAP-Elites to Generate a Team of Agents that Elicits Diverse Automated Gameplay
Guerrero Romero C and Perez-Liebana D
2021 IEEE Conference on Games (CoG) 17 Aug 2021 - 20 Aug 2021.

DOI 10.1109/CoG52621.2021.9619142

QMRO

17-08-2021

Portfolio Search and Optimization for General Strategy Game-Playing
Dockhorn A, Hurtado-Grueso J, Jeurissen D, Xu L and Perez-Liebana D
2021 IEEE Congress on Evolutionary Computation (CEC). vol. 00, 2085-2092.

DOI 10.1109/cec45853.2021.9504824

01-07-2021

Rolling Horizon Evolutionary Algorithms for General Video Game Playing
Gaina RD, Devlin S, Lucas SM and Perez D
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers

DOI 10.1109/TG.2021.3060282

QMRO

18-02-2021

Rolling horizon co-evolution in two-player general video game playing
Ringer C, Dobre GC, Pacheco C and Perez-Liebana D
AISB Convention 2021: Communication and Conversations.
01-01-2021

Action advising with advice imitation in deep reinforcement learning
Ilhan E, Gow J and Perez-Liebana D
Autonomous Agents and Multiagent Systems. vol. 2, 629-637.

QMRO

01-01-2021

Fingerprinting Tabletop Games
Goodman J, Perez-Liebana D and Lucas S
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619089

QMRO

01-01-2021

Automatic Goal Discovery in Subgoal Monte Carlo Tree Search
Jeurissen D, Winands MHM, Sironi CF and Perez-Liebana D
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619069

QMRO

01-01-2021

What Are You Looking At? Team Fight Prediction Through Player Camera
Tot M, Conserva M, Chitayat AP, Kokkinakis A, Patra S, Demediuk S, Munoz AC, Olarewaju O, Ursu M, Kirmann B, Hook J, Block F, Drachen A and Perez-Liebana D
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619038

QMRO

01-01-2021

Generating Diverse and Competitive Play-Styles for Strategy Games
Perez-Liebana D, Guerrero-Romero C, Dockhorn A, Xu L, Hurtado J and Jeurissen D
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619094

QMRO

01-01-2021

Learning on a Budget via Teacher Imitation
Ilhan E, Gow J and Perez-Liebana D
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619033

QMRO

01-01-2021

Game State and Action Abstracting Monte Carlo Tree Search for General Strategy Game-Playing
Dockhorn A, Hurtado-Grueso J, Jeurissen D, Xu L and Perez-Liebana D
IEEE Conference on Games. vol. 2021-August

DOI 10.1109/CoG52621.2021.9619029

QMRO

01-01-2021

TAG: Terraforming Mars
Gaina RD, Goodman J and Perez-Liebana D
Artificial Intelligence in Digital Entertainment., 148-155.

DOI 10.1609/aiide.v17i1.18902

QMRO

01-01-2021

2020

Tribes: A New Turn-Based Strategy Game for AI Research
Perez-Liebana D, Hsu Y-J, Emmanouilidis S, Khaleque B and Gaina R
Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment. vol. 16 (1), 252-258.

DOI 10.1609/aiide.v16i1.7438

QMRO

01-10-2020

Studying General Agents in Video Games from the Perspective of Player Experience
Guerrero Romero C, Kumari S, Perez-Liebana D and Deterding S
AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment.

DOI 10.1609/aiide.v16i1.7433

QMRO

01-10-2020

Stratega - A General Strategy Games Framework
Perez-Liebana D, Dockhorn A, Jeurissen D and Hurtado J
AIIDE-20 Workshop on Artificial Intelligence for Strategy Games (2020).

QMRO

02-09-2020

Evaluating Generalisation in General Video Game Playing
Balla M, Lucas SM and Perez-Liebana D
2020 IEEE Conference on Games (CoG). vol. 00, 423-430.

DOI 10.1109/cog47356.2020.9231530

QMRO

27-08-2020

Self-Adaptive Rolling Horizon Evolutionary Algorithms for General Video Game Playing
Gaina RD, Perez-Liebana D, Lucas SM, Sironi CF and Winands MHM
2020 IEEE Conference on Games (CoG). vol. 00, 367-374.

DOI 10.1109/cog47356.2020.9231587

QMRO

27-08-2020

Rolling Horizon NEAT for General Video Game Playing
Perez-Liebana D, Alam MS and Gaina RD
2020 IEEE Conference on Games (CoG). vol. 00, 375-382.

DOI 10.1109/cog47356.2020.9231606

QMRO

27-08-2020

Efficient Heuristic Policy Optimisation for a Challenging Strategic Card Game
Montoliu R, Gaina RD, Pérez-Liebana D, Delgado D and Lucas S
International Conference on the Applications of Evolutionary Computation. vol. 12104 LNCS, 403-418.

DOI 10.1007/978-3-030-43722-0_26

QMRO

09-04-2020

TAG: A tabletop games framework
Gaina RD, Balla M, Dockhorn A, Montoliu R and Perez-Liebana D
CEUR Workshop Proceedings. vol. 2862
01-01-2020

MCTS pruning in turn-based strategy games
Hsu YJ and Perez-Liebana D
CEUR Workshop Proceedings. vol. 2862
01-01-2020

2019

Analysis of Statistical Forward Planning Methods in Pommerman
Perez-Liebana D, Gaina RD, Drageset O, İlhan E, Balla M and Lucas SM
Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment. vol. 15 (1), 66-72.

DOI 10.1609/aiide.v15i1.5226

QMRO

08-10-2019

Guest Editorial Special Issue on Game Competition Frameworks for Research and Education

Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 11 (3), 192-194.

DOI 10.1109/tg.2019.2938903

01-09-2019

Rinascimento: Optimising Statistical Forward Planning Agents for Playing Splendor
Bravi I, Perez-Liebana D, Lucas SM and Liu J
2019 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cig.2019.8848028

23-08-2019

Evolving Game State Evaluation Functions for a Hybrid Planning Approach
Neufeld X, Mostaghim S and Perez-Liebana D
2019 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cig.2019.8848117

23-08-2019

Teaching on a Budget in Multi-Agent Deep Reinforcement Learning
İlhan E, Gow J and Perez-Liebana D
2019 IEEE Conference on Games (CoG). vol. 00, 1-8.

DOI 10.1109/cig.2019.8847988

23-08-2019

A Local Approach to Forward Model Learning: Results on the Game of Life Game
Lucas S, Dockhorn A, Volz V, Bamford C, GAINA RALUCA, Bravi I, Perez-Liebana D, Mostaghim S and Kruse R
IEEE Conference on Games (COG).

DOI 10.1109/CIG.2019.8848002

QMRO

20-08-2019

Learning Local Forward Models on Unforgiving Games
Dockhorn A, Lucas S, Volz V, Bravi I, GAINA RALUCA and Perez-Liebana D
IEEE Conference on Games (COG).

DOI 10.1109/CIG.2019.8848044

QMRO

20-08-2019

Optimising Level Generators for General Video Game AI
Drageset O, GAINA RALUCA, Perez-Liebana D and Winands M
IEEE Conference on Games (COG).

DOI 10.1109/CIG.2019.8847961

QMRO

20-08-2019

Project Thyia: A Forever Gameplayer
GAINA RALUCA, Lucas S and Perez-Liebana D
IEEE Conference on Games (COG).

DOI 10.1109/CIG.2019.8848047

QMRO

20-08-2019

Ensemble decision systems for general video game playing
Anderson D, Rodgers P, Levine J, Guerrero-Romero C and Perez-Liebana D
2019 IEEE Conference on Games (CoG). vol. 2019-August

DOI 10.1109/CIG.2019.8848089

QMRO

01-08-2019

Tackling Sparse Rewards in Real-Time Games with Statistical Forward Planning Methods
Gaina RD, Lucas SM and Pérez-Liébana D
Proceedings of the AAAI Conference on Artificial Intelligence. vol. 33 (01), 1691-1698.

DOI 10.1609/aaai.v33i01.33011691

QMRO

17-07-2019

General Video Game AI: a Multi-Track Framework for Evaluating Agents, Games and Content Generation Algorithms
Perez D, Liu J, Abdel Samea Khalifa A, Gaina RD, Togelius J and Lucas SM
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee), 1-1.

DOI 10.1109/tg.2019.2901021

QMRO

11-03-2019

Efficient Evolutionary Methods for Game Agent Optimisation: Model-Based is Best
Lucas S, Liu J, Bravi I, GAINA RALUCA, Woodward J, Volz V and Perez-Liebana D
Game Simulations Workshop (AAAI).
04-02-2019

2018

VERTIGØ: Visualisation of Rolling Horizon Evolutionary Algorithms in GVGAI
Gaina R, Lucas S and Pérez-Liébana D
Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment. vol. 14 (1), 265-267.

DOI 10.1609/aiide.v14i1.13011

25-09-2018

Modeling Player Experience with the N-Tuple Bandit Evolutionary Algorithm
Kunanusont K, Lucas S and Pérez-Liébana D
Proceedings of The Aaai Conference On Artificial Intelligence and Interactive Digital Entertainment, Association For The Advancement of Artificial Intelligence (Aaai) vol. 14 (1), 215-221.

DOI 10.1609/aiide.v14i1.13039

25-09-2018

General Win Prediction from Agent Experience
Gaina RD, Lucas SM and Perez-Liebana D
2018 IEEE Conference on Computational Intelligence and Games (CIG). vol. 00, 1-8.

DOI 10.1109/cig.2018.8490439

QMRO

17-08-2018

Deep Reinforcement Learning for General Video Game AI
Torrado RR, Bontrager P, Togelius J, Liu J and Perez-Liebana D
2018 IEEE Conference on Computational Intelligence and Games (CIG). vol. 00, 1-8.

DOI 10.1109/cig.2018.8490422

17-08-2018

Shallow Decision-Making Analysis in General Video Game Playing
Bravi I, Perez-Liebana D, Lucas SM and Liu J
2018 IEEE Conference on Computational Intelligence and Games (CIG). vol. 00, 1-8.

DOI 10.1109/cig.2018.8490365

17-08-2018

Toward General Mathematical Game Playing Agents
Ashlock D, Kim E-Y and Perez-Lebana D
2018 IEEE Conference on Computational Intelligence and Games (CIG). vol. 00, 1-7.

DOI 10.1109/cig.2018.8490428

17-08-2018

Using a Team of General AI Algorithms to Assist Game Design and Testing
Guerrero-Romero C, LUCAS S and PEREZ-LIEBANA D
2018 IEEE Conference on Computational Intelligence and Games (CIG).

DOI 10.1109/CIG.2018.8490417

QMRO

14-08-2018

Studying believability assessment in racing games
Pacheco C, Tokarchuk L and Pérez-Liébana D
Proceedings of the 13th International Conference on the Foundations of Digital Games., 1-10.

DOI 10.1145/3235765.3235797

07-08-2018

The N-Tuple Bandit Evolutionary Algorithm for Game Agent Optimisation
Lucas SM, Liu J and Perez-Liebana D
2018 IEEE Congress on Evolutionary Computation (CEC). vol. 00, 1-9.

DOI 10.1109/cec.2018.8477869

08-07-2018

Self-adaptive MCTS for General Video Game Playing
Sironi CF, Liu J, Perez-Liebana D, Gaina RD, Bravi I, Lucas SM and Winands MHM
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 10784 LNCS, 358-375.

DOI 10.1007/978-3-319-77538-8_25

QMRO

01-01-2018

Modeling player experience with the n-tuple bandit evolutionary algorithm
Kunanusont K, Lucas SM and Pérez-Lébana D
Proceedings of the 14th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, AIIDE 2018., 180-186.
01-01-2018

Evolving Behaviour Tree Structures Using Grammatical Evolution
Perez-Liebana D and Nicolau M
In Handbook of Grammatical Evolution, Springer Nature 433-460.

DOI 10.1007/978-3-319-78717-6_18

01-01-2018

General Win Prediction from Agent Experience
Gaina RD, Lucas SM and Perez-Liebana D
PROCEEDINGS OF THE 2018 IEEE CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND GAMES (CIG'18)., 62-69.
01-01-2018

Using a Team of General AI Algorithms to Assist Game Design and Testing
Guerrero-Romero C, Lucas SM and Perez-Liebana D
PROCEEDINGS OF THE 2018 IEEE CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND GAMES (CIG'18)., 466-473.
01-01-2018

Deep Reinforcement Learning for General Video Game AI
Tornado RR, Bontrager P, Togelius J, Liu J and Perez-Liebana D
PROCEEDINGS OF THE 2018 IEEE CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND GAMES (CIG'18)., 316-323.
01-01-2018

2017

Pac-Man Conquers Academia: Two Decades of Research Using a Classic Arcade Game
Rohlfshagen P, Liu J, Perez-Liebana D and Lucas SM
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 10 (3), 233-256.

DOI 10.1109/tg.2017.2737145

QMRO

14-12-2017

The 2016 Two-Player GVGAI Competition
Gaina RD, Couetoux A, Soemers D, Winands MHM, Vodopivec T, Kirchgebner F, Liu J, Lucas SM and Perez D
Ieee Transactions On Computational Intelligence and Ai in Games

DOI 10.1109/TCIAIG.2017.2771241

QMRO

07-11-2017

Efficient Noisy Optimisation with the Multi-Sample and Sliding Window Compact Genetic Algorithms
Lucas SM, Liu J and Pérez-Liébana D
2017 IEEE Symposium Series on Computational Intelligence (SSCI)., 1-8.

DOI 10.1109/ssci.2017.8285333

01-11-2017

Rolling horizon evolution enhancements in general video game playing
Gaina RD, Lucas SM and Perez-Liebana D
2017 IEEE Conference on Computational Intelligence and Games, CIG 2017., 88-95.

DOI 10.1109/CIG.2017.8080420

23-10-2017

Introducing real world physics and macro-actions to general video game ai
Perez-Liebana D, Stephenson M, Gaina RD, Renz J and Lucas SM
2017 IEEE Conference on Computational Intelligence and Games, CIG 2017., 248-255.

DOI 10.1109/CIG.2017.8080443

23-10-2017

Beyond Playing to Win: Diversifying Heuristics for GVGAI
Guerrero-Romero C, Louis A and Perez-Liebana D
IEEE Conference on Computational Intelligence and Games (CIG).

DOI 10.1109/CIG.2017.8080424

QMRO

22-08-2017

General Video Game Playing Escapes the No Free Lunch Theorem
Ashlock D, Perez-Liebana D and Saunders A
2017 IEEE Conference on Computational Intelligence and Games (CIG)., 17-24.

DOI 10.1109/cig.2017.8080410

01-08-2017

Building an Automatic Sprite Generator with Deep Convolutional Generative Adversarial Networks
Horsley L and Perez-Liebana D
2017 IEEE Conference on Computational Intelligence and Games (CIG)., 134-141.

DOI 10.1109/cig.2017.8080426

01-08-2017

General Video Game Rule Generation
Khalifa A, Green MC, Perez-Liebana D and Togelius J
2017 IEEE Conference on Computational Intelligence and Games (CIG)., 170-177.

DOI 10.1109/cig.2017.8080431

01-08-2017

Population seeding techniques for Rolling Horizon Evolution in General Video Game Playing
Gaina RD, Lucas SM and Perez-Liebana D
2017 IEEE Congress on Evolutionary Computation, CEC 2017 - Proceedings., 1956-1963.

DOI 10.1109/CEC.2017.7969540

05-07-2017

The N-Tuple bandit evolutionary algorithm for automatic game improvement
Kunanusont K, Gaina RD, Liu J, Perez-Liebana D and Lucas SM
2017 IEEE Congress on Evolutionary Computation, CEC 2017 - Proceedings., 2201-2208.

DOI 10.1109/CEC.2017.7969571

QMRO

05-07-2017

Evaluating and Modelling Hanabi-Playing Agents
Walton-Rivers J, Williams PR, Bartle R, Perez-Liebana D and Lucas SM
2017 IEEE Congress on Evolutionary Computation (CEC)., 1382-1389.

DOI 10.1109/cec.2017.7969465

01-06-2017

General Video Game AI: Learning from Screen Capture
Kunanusont K, Lucas SM and Perez-Liebana D
2017 IEEE Congress on Evolutionary Computation (CEC)., 2078-2085.

DOI 10.1109/cec.2017.7969556

01-06-2017

Bandit-Based Random Mutation Hill-Climbing
Liu J, Perez-Liebana D and Lucas SM
2017 IEEE Congress on Evolutionary Computation (CEC)., 2145-2151.

DOI 10.1109/cec.2017.7969564

01-06-2017

Evolving Game Skill-Depth Using General Video Game AI Agents
Liu J, Togelius J, Pèrez-Liebana D and Lucas SM
2017 IEEE Congress on Evolutionary Computation (CEC)., 2299-2307.

DOI 10.1109/cec.2017.7969583

01-06-2017

General video game for 2 players: Framework and competition
Gaina RD, Pérez-Liébana D and Lucas SM
2016 8th Computer Science and Electronic Engineering Conference, CEEC 2016 - Conference Proceedings., 186-191.

DOI 10.1109/CEEC.2016.7835911

QMRO

27-01-2017

Analysis of vanilla rolling Horizon evolution parameters in general video game playing
Gaina RD, Liu J, Lucas SM and Pérez-Liébana D
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 10199 LNCS, 418-434.

DOI 10.1007/978-3-319-55849-3_28

QMRO

01-01-2017

HTN Fighter: Planning in a Highly-Dynamic Game
Neufeld X, Mostaghim S and Perez-Liebana D
2017 9th Computer Science and Electronic Engineering (CEEC)., 189-194.

DOI 10.1109/ceec.2017.8101623

01-01-2017

Opponent Models Comparison for 2 Players in GVGAI Competitions
Gonzalez-Castro JM and Perez-Liebana D
2017 9th Computer Science and Electronic Engineering (CEEC)., 151-156.

DOI 10.1109/ceec.2017.8101616

01-01-2017

Diversity Maintenance Using a Population of Repelling Random-Mutation Hill Climbers
Volkovas R, Fairbank M and Perez-Liebana D
2017 9th Computer Science and Electronic Engineering (CEEC)., 37-42.

DOI 10.1109/ceec.2017.8101596

01-01-2017

2016

Default policies for global optimisation of noisy functions with severe noise
Samothrakis S, Fasli M, Perez D and Lucas S
Journal of Global Optimization vol. 67 (4), 893-907.

DOI 10.1007/s10898-016-0482-9

QMRO

17-12-2016

General Video Game Level Generation
Khalifa A, Perez-Liebana D, Lucas SM and Togelius J
Proceedings of the Genetic and Evolutionary Computation Conference 2016., 253-259.

DOI 10.1145/2908812.2908920

20-07-2016

Multiobjective Tree Search Approaches for General Video Game Playing
Perez-Liebana D, Mostaghim S and Lucas SM
2016 IEEE Congress on Evolutionary Computation (CEC)., 624-631.

DOI 10.1109/cec.2016.7743851

01-07-2016

Evolutionary Behavior Tree Approaches for Navigating Platform Games
Nicolau M, Perez-Liebana D, Oneill M and Brabazon A
Ieee Transactions On Computational Intelligence and Ai in Games vol. 9 (3), 227-238.

DOI 10.1109/TCIAIG.2016.2543661

17-03-2016

General Video Game AI: Competition, Challenges and Opportunities
Perez-Liebana D, Samothrakis S, Togelius J, Schaul T and Lucas S
Proceedings of the AAAI Conference on Artificial Intelligence. vol. 30 (1)

DOI 10.1609/aaai.v30i1.9869

05-03-2016

Analyzing the Robustness of General Video Game Playing Agents
Pérez-Liébana D, Samothrakis S, Togelius J, Schaul T and Lucas SM
2016 IEEE Conference on Computational Intelligence and Games (CIG)., 1-8.

DOI 10.1109/cig.2016.7860430

01-01-2016

Ms. Pac-Man Versus Ghost Team CIG 2016 Competition
Williams PR, Perez-Liebana D and Lucas SM
2016 IEEE Conference on Computational Intelligence and Games (CIG)., 1-8.

DOI 10.1109/cig.2016.7860446

01-01-2016

Rolling Horizon Coevolutionary Planning for Two-Player Video Games
Liu J, Pérez-Liébana D and Lucas SM
2016 8th Computer Science and Electronic Engineering (CEEC)., 174-179.

DOI 10.1109/ceec.2016.7835909

01-01-2016

MCTS/EA Hybrid GVGAI Players and Game Difficulty Estimation
Horn H, Volz V, Pérez-Liébana D and Preuss M
2016 IEEE Conference on Computational Intelligence and Games (CIG)., 1-8.

DOI 10.1109/cig.2016.7860384

01-01-2016

2015

Neuroevolution for General Video Game Playing
Samothrakis S, Perez-Liebana D, Lucas SM and Fasli M
2015 IEEE Conference on Computational Intelligence and Games (CIG)., 200-207.

DOI 10.1109/cig.2015.7317943

01-08-2015

Open Loop Search for General Video Game Playing
Liebana DP, Dieskau J, Hunermund M, Mostaghim S and Lucas S
Proceedings of the 2015 Annual Conference on Genetic and Evolutionary Computation., 337-344.

DOI 10.1145/2739480.2754811

11-07-2015

The 2014 General Video Game Playing Competition
Perez-Liebana D, Samothrakis S, Togelius J, Schaul T, Lucas SM, Couëtoux A, Lee J, Lim C-U and Thompson T
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 8 (3), 229-243.

DOI 10.1109/tciaig.2015.2402393

10-02-2015

Monte Carlo Tree Search Applied to Co-Operative Problems
Williams PR, Walton-Rivers J, Perez-Liebana D and Lucas SM
2015 7th Computer Science and Electronic Engineering Conference (CEEC)., 219-224.

DOI 10.1109/ceec.2015.7332728

01-01-2015

Procedural Level Generation with Answer Set Programming for General Video Game Playing
Neufeld X, Mostaghim S and Perez-Liebana D
2015 7th Computer Science and Electronic Engineering Conference (CEEC)., 207-212.

DOI 10.1109/ceec.2015.7332726

01-01-2015

2014

Automated Map Generation for the Physical Traveling Salesman Problem
Perez D, Togelius J, Samothrakis S, Rohlfshagen P and Lucas SM
Ieee Transactions On Evolutionary Computation, Institute of Electrical and Electronics Engineers (Ieee) vol. 18 (5), 708-720.

DOI 10.1109/tevc.2013.2281508

29-09-2014

Predicting Dominance Rankings for Score-Based Games
Samothrakis S, Perez D, Lucas SM and Rohlfshagen P
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 8 (1), 1-12.

DOI 10.1109/tciaig.2014.2346242

QMRO

07-08-2014

Multiobjective Monte Carlo Tree Search for Real-Time Games
Perez D, Mostaghim S, Samothrakis S and Lucas SM
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 7 (4), 347-360.

DOI 10.1109/tciaig.2014.2345842

06-08-2014

Rolling Horizon methods for Games with Continuous States and Actions
Samothrakis S, Roberts SA, Perez D and Lucas SM
2014 IEEE Conference on Computational Intelligence and Games., 1-8.

DOI 10.1109/cig.2014.6932888

01-08-2014

Knowledge-based Fast Evolutionary MCTS for General Video Game Playing
Perez D, Samothrakis S and Lucas S
2014 IEEE Conference on Computational Intelligence and Games., 1-8.

DOI 10.1109/cig.2014.6932868

01-08-2014

The 2013 Multi-Objective Physical Travelling Salesman Problem Competition
Perez D, Powley E, Whitehouse D, Samothrakis S, Lucas S and Cowling PI
2014 IEEE Congress on Evolutionary Computation (CEC)., 2314-2321.

DOI 10.1109/cec.2014.6900243

01-07-2014

Solving the Physical Traveling Salesman Problem: Tree Search and Macro Actions
Perez D, Powley EJ, Whitehouse D, Rohlfshagen P, Samothrakis S, Cowling PI and Lucas SM
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 6 (1), 31-45.

DOI 10.1109/tciaig.2013.2263884

13-03-2014

Fast Evolutionary Adaptation for Monte Carlo Tree Search
Lucas SM, Samothrakis S and Pérez D
Lecture Notes in Computer Science. vol. 8602, 349-360.

DOI 10.1007/978-3-662-45523-4_29

01-01-2014

2013

Online and Offline Learning in Multi-Objective Monte Carlo Tree Search
Perez D, Samothrakis S and Lucas S
2013 IEEE Conference on Computational Inteligence in Games (CIG)., 1-8.

DOI 10.1109/cig.2013.6633621

01-08-2013

Rolling horizon evolution versus tree search for navigation in single-player real-time games
Perez D, Samothrakis S, Lucas S and Rohlfshagen P
Proceedings of the 15th annual conference on Genetic and evolutionary computation., 351-358.

DOI 10.1145/2463372.2463413

06-07-2013

2012

Monte Carlo Tree Search: Long-term versus Short-term Planning
Perez D, Rohlfshagen P and Lucas SM
2012 IEEE Conference on Computational Intelligence and Games (CIG)., 219-226.

DOI 10.1109/cig.2012.6374159

01-09-2012

The Physical Travelling Salesman Problem: WCCI 2012 Competition
Perez D, Rohlfshagen P and Lucas SM
2012 IEEE Congress on Evolutionary Computation. vol. 1, 1-8.

DOI 10.1109/cec.2012.6256440

01-06-2012

Towards more intelligent adaptive video game agents
Lucas SM, Rohlfshagen P and Perez D
Proceedings of the 9th conference on Computing Frontiers., 293-298.

DOI 10.1145/2212908.2212955

15-05-2012

A Survey of Monte Carlo Tree Search Methods
Browne CB, Powley E, Whitehouse D, Lucas SM, Cowling PI, Rohlfshagen P, Tavener S, Perez D, Samothrakis S and Colton S
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 4 (1), 1-43.

DOI 10.1109/tciaig.2012.2186810

03-02-2012

Monte-Carlo Tree Search for the Physical Travelling Salesman Problem
Perez D, Rohlfshagen P and Lucas SM
Lecture Notes in Computer Science. vol. 7248, 255-264.

DOI 10.1007/978-3-642-29178-4_26

01-01-2012

2011

Reactiveness and Navigation in Computer Games: Different Needs, Different Approaches
Perez D, Nicolau M, O'Neill M and Brabazon A
2011 IEEE Conference on Computational Intelligence and Games (CIG'11)., 273-280.

DOI 10.1109/cig.2011.6032017

01-08-2011

Evolving Behaviour Trees for the Mario AI Competition Using Grammatical Evolution
Perez D, Nicolau M, O’Neill M and Brabazon A
Lecture Notes in Computer Science. vol. 6624, 123-132.

DOI 10.1007/978-3-642-20525-5_13

01-01-2011

2010

The 2009 Simulated Car Racing Championship
Loiacono D, Lanzi PL, Togelius J, Onieva E, Pelta DA, Butz MV, Lönneker TD, Cardamone L, Perez D, Sáez Y, Preuss M and Quadflieg J
Ieee Transactions On Games, Institute of Electrical and Electronics Engineers (Ieee) vol. 2 (2), 131-147.

DOI 10.1109/tciaig.2010.2050590

18-05-2010

2009

Evolving a Fuzzy Controller for a Car Racing Competition
Perez D, Recio G, Saez Y and Isasi P
2009 IEEE Symposium on Computational Intelligence and Games., 263-270.

DOI 10.1109/cig.2009.5286467

01-09-2009

2008

Evolving a rule system controller for automatic driving in a car racing competition
Perez D, Saez Y, Recio G and Isasi P
2008 IEEE Symposium On Computational Intelligence and Games., 336-342.

DOI 10.1109/cig.2008.5035659

01-12-2008

The WCCI 2008 Simulated Car Racing Competition
Loiacono D, Togelius J, Lanzi PL, Kinnaird-Heether L, Lucas SM, Simmerson M, Perez D, Reynolds RG and Saez Y
2008 IEEE Symposium On Computational Intelligence and Games., 119-126.

DOI 10.1109/cig.2008.5035630

01-12-2008

Driving Cars by Means of Genetic Algorithms
Saez Y, Perez D, Sanjuan O and Isasi P
Lecture Notes in Computer Science. vol. 5199, 1101-1110.

DOI 10.1007/978-3-540-87700-4_109

01-01-2008

Grants

Grants of specific relevance to the Centre for Multimodal AI

IGGI CDT Studentship: Dominik Jeurissen
Diego Perez-Liebana
£48,073 The Creative Assembly Limited
03-10-2022 - 02-07-2027

Annotating Reference and Coreference In Dialogue Using Conversational Agents in games
Massimo Poesio, Julian Hough, Diego Perez-Liebana and Matthew Purver
£986,834 EPSRC Engineering and Physical Sciences Research Council
01-02-2022 - 31-07-2025

EMEA PhD Agreement MRL 2020-032
Diego Perez-Liebana
£67,008 Microsoft Research Limited (UK)
16-09-2020 - 15-09-2025

IGGI2: Intelligent Games and Game Intelligence - CDT Phase 2
Simon Lucas, Laurissa Tokarchuk, Diego Perez-Liebana, Jeremy Gow, Simon Colton and Peter Cowling
£3,004,935 EPSRC Engineering and Physical Sciences Research Council
01-10-2019 - 30-09-2027

Updating MSR Malmo
Diego Perez-Liebana
£23,750 Microsoft Research Limited (UK)
01-07-2020 - 30-06-2021

Abstract Forward Models for Modern Games
Diego Perez-Liebana
£305,207 EPSRC Engineering and Physical Sciences Research Council
01-04-2020 - 30-09-2022

DSTL & Pommerman
Diego Perez-Liebana
£70,484 MOD Ministry of Defence
01-03-2019 - 09-08-2019

Concept definition of an operational decision support tool (OpDST)
Simon Lucas and Diego Perez-Liebana
£63,388 Alan Turing Institute, The
01-09-2018 - 17-01-2019

AIIDE 2018 workshop of Learning to Play: The Multi-Agent Reinforcement Learning in MalmO (MARLO)
Diego Perez-Liebana
£8,000 Microsoft Research Limited (UK)
01-07-2018 - 30-06-2019

Multi-agent Learning Malmo Competition
Diego Perez-Liebana
£61,999 Microsoft Research Limited (UK)
01-06-2018 - 31-05-2019