Christoffer Holmgård


Games - Artificial Intelligence - Psychology

Work


About


I'm a game developer, teacher, and game/artificial intelligence researcher based out of Northeastern University and Die Gute Fabrik. My research focuses on using AI in the service of game design. With a background in game design and psychology, I am interested in building AI player models and applying these in game development, testing, and game play and using them to understand players and the craft of making games.

I study small-scale game development processes with a strong interest in tools and ecologically valid playtesting.

As a co-owner of independent game development studio Die Gute Fabrik, I focus on production, design, and programming of games that are synaesthetic, offbeat, and above all, personal.

Selected Publications


  • Benedikte Mikkelsen, Christoffer Holmgård, and Julian Togelius. Towards Ethical Frameworks and Methods for Player Modeling and Profiling. In Thirtyfirst AAAI Conference on Artificial Intelligence Technical Papers: What’s Next for AI in Games, 2017.
  • Ivan Bravi, Ahmed Khalifa, Christoffer Holmgård, and Julian Togelius. Evolving UCT Alternatives for General Video Game Playing. In The IJCAI-16 Workshop on General Game Playing, page 63, 2016.
  • Martin Fasterholdt, Martin Pichlmair, and Christoffer Holmgård. You Say Jump, I Say How High? Opera- tionalising the Game Feel of Jumping. In Foundations of Digital Games. 2016.
  • Christoffer Holmgård and Karen-Inge Karstoft. Games for Treating and Diagnosing Post Traumatic Stress Disorder. In Emotion in Games, pages 257–274. Springer International Publishing, 2016.
  • Christoffer Holmgård, Julian Togelius, and Lars Henriksen. Computational Intelligence and Cognitive Perfor- mance Assessment Games. In IEEE Computational Intelligence and Games, 2016.
  • Aaron Isaksen, Christoffer Holmgård, Julian Togelius, and Andy Nealen. Characterising Score Distributions in Dice Games. In Game & Puzzle Design, volume 2, pages 24—37. 2016.
  • Rishabh Jain, Aaron Isaksen, Christoffer Holmgård, and Julian Togelius. Autoencoders for Level Generation, Repair, and Recognition. In The Seventh International Conference on Computational Creativity, 2016.
  • Scott Lee, Aaron Isaksen, Christoffer Holmgård, and Julian Togelius. Predicting Resource Locations in Game Maps Using Deep Convolutional Neural Networks. In Twelfth Artificial Intelligence and Interactive Digital Entertainment Conference, 2016.
  • Nicklas Nygren and Christoffer Holmgård. Absurd and Minimal Socially Believable NPCs. In Proceedings Of The First International Joint Conference Of DiGRA and FDG, 2016.
  • Che Wang, Pan Chen, Yuanda Li, Christoffer Holmgård, and Julian Togelius. Portfolio Online Evolution in StarCraft. In Twelfth Artificial Intelligence and Interactive Digital Entertainment Conference, 2016.
  • Yun-Gyung Cheong, Rilla Khaled, Christoffer Holmgård, and Georgios N Yannakakis. Serious Games for Teach- ing Conflict Resolution: Modeling Conflict Dynamics. In Conflict and Multimodal Communication, pages 449– 475. Springer International Publishing, 2015.
  • Christoffer Holmgård, Antonios Liapis, Julian Togelius, and Georgios N Yannakakis. Evolving Models of Player Decision Making: Personas versus Clones. Entertainment Computing, 2015.
  • Christoffer Holmgård, Antonios Liapis, Julian Togelius, and Georgios N Yannakakis. Monte-Carlo Tree Search for Persona Based Player Modeling. In Eleventh Artificial Intelligence and Interactive Digital Entertainment Conference, 2015.
  • Christoffer Holmgård, Georgios N Yannakakis, H ́ector P Mart ́ınez, and Karen-Inge Karstoft. To Rank or To Classify? Annotating Stress for Reliable PTSD Profiling. In Affective Computing and Intelligent Interaction (ACII), 2015 International Conference on, pages 719–725. IEEE, 2015.
  • Antonios Liapis, Christoffer Holmgård, Georgios N Yannakakis, and Julian Togelius. Procedural Personas as Critics for Dungeon Generation. In Applications of Evolutionary Computation, pages 331–343. Springer, 2015.
  • Christoffer Holmgård, Antonios Liapis, Julian Togelius, and Georgios N. Yannakakis. Evolving Personas for Player Decision Modeling. In IEEE Conference on Computational Intelligence and Games, 2014.
  • Christoffer Holmgård, Antonios Liapis, Julian Togelius, and Georgios N Yannakakis. Generative Agents for Player Decision Modeling in Games. In Foundations of Digital Games, 2014.
  • Christoffer Holmgård, Antonios Liapis, Julian Togelius, and Georgios N Yannakakis. Personas versus Clones for Player Decision Modeling. In Entertainment Computing–ICEC 2014, pages 159–166. Springer, 2014.
  • Christoffer Holmgård, Georgios N Yannakakis, H ́ector P Mart ́ınez, Karen-Inge Karstoft, and Henrik Steen An- dersen. Multimodal PTSD Characterization via the StartleMart Game. Journal on Multimodal User Interfaces, pages 1–13, 2014.
  • Yun-Gyung Cheong, Corrado Grappiolo, Christoffer Holmgård, Florian Berger, Rilla Khaled, and Georgios N Yannakakis. Towards Validating Game Scenarios for Teaching Conflict Resolution. In Foundations of Digital Games, Games for Learning Workshop, 2013.
  • Elin Rut Gudnadottir, Alaina K Jensen, Yun-Gyung Cheong, Julian Togelius, Byung Chull Bae, and Christof- fer Holmgård Pedersen. Detecting Predatory Behaviour in Online Game Chats. The 2nd Workshop on Games and NLP (GAMNLP-13), 2013.
  • Christoffer Holmgård. Decision Making in Computer Games. In Foundations of Digital Games, Doctoral Con- sortium, 2013.
  • Christoffer Holmgård, Julian Togelius, and Georgios N. Yannakakis. Decision Making Styles as Deviation from Rational Action. A Super Mario Case Study. In Proceedings of the Ninth Annual AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, 2013.
  • Christoffer Holmgard, Georgios N Yannakakis, Karen-Inge Karstoft, and Henrik Steen Andersen. Stress De- tection for PTSD via the StartleMart Game. In Affective Computing and Intelligent Interaction (ACII), 2013 Humaine Association Conference on, pages 523–528. IEEE, 2013.
  • Christoffer Holmgård, Georgios N Yannakakis, and Rilla Khaled. The Games for Health Prototype. In Founda- tions of Digital Games, Research and Experimental Games Festival, pages 396–399, 2013.
  • Christoffer Holmgård Pedersen, Rilla Khaled, and Georgios N Yannakakis. Ethical Considerations in Designing Adaptive Persuasive Games. Persuasive Technology, 2012.
  • Christoffer Holmgård Pedersen and Georgios N. Yannakakis. Epistemological Challenges for Operationalism in Player Experience Research. In Foundations of Digital Games, 2012.
  • Birgitte Hommelgaard, Christoffer Holmgård Pedersen, Lea Bønsø, Sarah Voschero Christensen, and Thomas W Teasdale. Undersøgelse af, hvad der påvirker pårørende til soldater udsendt til Kosovo og Afghanistan i perioden februar – august 2009. Forsvarsakademiets forlag, Copenhagen, March 2011.
  • Yvonne Duval Thomsen, Robert Jonassen, Dorthe Berntsen, Kim Berg Johannesen, Christina Rams Hoxer, Christoffer Holmgård Pedersen, Per Bach, Henrik Klausen, and Mette Bertelsen. Rapport om undersøgelser af hvad der påvirker de udsendte soldater og deres pårørende. Forsvarsakademiets forlag, Copenhagen, March 2011.
  • Yvonne Duval Thomsen, Robert Jonassen, Dorthe Berntsen, Kim Berg Johannesen, Christina Rams Hoxer, Christoffer Holmgård Pedersen, Per Bach, Henrik Klausen, and Mette Bertelsen. Undersøgelse af psykiske efterreaktioner hos soldater udsendt til Afghanistan perioden februar – august 2009. Forsvarsakademiets forlag, Copenhagen, March 2011.
  • Thomas W Teasdale, Peter VW Hartmann, Christoffer Holmgård Pedersen, and Mette Bertelsen. The Reliability and Validity of the Danish Draft Board Cognitive Ability Test: Børge Prien’s Prøve. Scandinavian journal of psychology, 52(2):126–130, 2011.
  • Christoffer Holmgård Pedersen and Mads Caspersen. Learning through Simulations and Games. A Theoretical Synthesis and a Design Guide. Master’s thesis, IT University of Copenhagen, 2008.
  • Christoffer Holmgård Pedersen. How Does Flow Arise? Bachelor’s thesis, University of Copenhagen, 2006.
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Projects


  • Co-organizer of the Player Analytics Workshop at the Twelfth Annual AAAI Artificial Intelligence and Inter- active Digital Entertainment Conference 2016 (AIIDE) (http://playermodeling.org).
  • Participant at the Banff International Research Station for Mathematical Innovation and Discovery workshop: Computational Modeling in Games (16w5160), May 15 to May 20, 2016 (http://www.birs.ca/events/2016/ 5-day-workshops/16w5160).
  • Chairman of ScrollBar, social and political organization for the students of the IT University of Copenhagen.
  • Collaborator, Copenhagen Game Collective, curatorial and community oriented non-profit game organization.
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