Publications

Squeezer - A Mixed-Initiative Tool for Designing Juice Effects

Johansen, M., Pichlmair, M. & Risi, S., 16 Sep 2021, Proceedings of The 16th International Conference on the Foundations of Digital Games (FDG) 2021 (FDG’21). Association for Computing Machinery, 11 p. 37

Utopian or Dystopian?: Using a ML-Assisted image generation game to empower the general public to envision the future

Rafner, J., Langsford, S., Philipsen, L., Risi, S., Hjorth, A., Simon, J., Gajdacz, M. & Sherson, J., 1 Jun 2021, Creativity and cognition (C&C '21). United States: Association for Computing Machinery, (ACM International Conference Proceeding Series).

Player-AI Interaction: What Neural Network Games Reveal About AI as Play

Zhu, J., Villareale, J., Javvaji, N., Risi, S., Löwe, M., Weigelt, R. & Harteveld, C., May 2021, CHI '21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems. 77

Deep Innovation Protection: Confronting the Credit Assignment Problem in Training Heterogeneous Neural Architectures

Risi, S. & Stanley, K. O., 2021, Proceedings of the AAAI Conference on Artificial Intelligence. 14 ed. AAAI Press, Vol. 35. p. 12391-12399 9 p.

Evolutionary Planning in Latent Space

Olesen, T. V. A. N., Nguyen, D. T. T., Berg Palm, R. & Risi, S., 2021, International Conference on the Applications of Evolutionary Computation . EvoStar

Squeezer - A Tool for Designing Juicy Effects

Johansen, M., Pichlmair, M. & Risi, S., 2 Nov 2020, CHI PLAY '20: Extended Abstracts of the 2020 Annual Symposium on Computer-Human Interaction in Play. Association for Computing Machinery, p. 282–286 4 p.

iNNk: A Multi-Player Game to Deceive a Neural Network

Villareale, J., Acosta-Ruiz, A. V., Arcaro, S. A., Fox, T., Freed, E., Gray, R. C., Löwe, M., Nuchprayoon, P., Sladek, A., Weigelt, R., Li, Y., Risi, S. & Zhu, J., 1 Nov 2020, CHI PLAY '20: Extended Abstracts of the 2020 Annual Symposium on Computer-Human Interaction in Play. p. 33-37 4 p.

Adapting to a changing environment: Simulating the effects of noise on animal sonification

Kadish, D. & Risi, S., 14 Jul 2020, ALIFE 2020: The 2020 Conference on Artificial Life. Bongard, J., J. L., Hebert-Dufrésne, L., Dasari, R. & Soros, L. (eds.). 32 ed. MIT Press, p. 687-695 9 p. (Artificial Life Conference Proceedings ).

Safe Reinforcement Learning through Meta-learned Instincts

Grbic, D. & Risi, S., 13 Jul 2020, ALIFE 2020: The 2020 Conference on Artificial Life. 32 ed. MIT Press, p. 183-291 8 p. (Artificial Life Conference Proceedings ).

Evolving HyperNetworks for Game-Playing Agents

Carvelli, C., Grbic, D. & Risi, S., 8 Jul 2020, GECCO '20: Proceedings of the 2020 Genetic and Evolutionary Computation Conference Companion. Association for Computing Machinery, p. 71-72 2 p.

Safer reinforcement learning through evolved instincts

Grbic, D. & Risi, S., Jul 2020, GECCO '20: Proceedings of the 2020 Genetic and Evolutionary Computation Conference Companion. Association for Computing Machinery, p. 77-78 2 p.

CG-GAN: An Interactive Evolutionary GAN-Based Approach for Facial Composite Generation

Zaltron, N., Zurlo, L. & Risi, S., 1 Apr 2020, Proceedings of the AAAI Conference on Artificial Intelligence. 03 ed. Association for the Advancement of Artificial Intelligence, Vol. 34. p. 2544-2551 8 p. (Proceedings of the AAAI Conference on Artificial Intelligence).

Bootstrapping Conditional GANs for Video Game Level Generation

Torrado, R. R., Khalifa, A., Green, M. C., Justesen, N., Risi, S. & Togelius, J., 2020, 2020 IEEE Conference on Games (CoG). IEEE, Vol. 1. p. 41-48 8 p.

CPPN2GAN: Combining Compositional Pattern Producing Networks and GANs for Large-Scale Pattern Generation

Schrum, J., Volz, V. & Risi, S., 2020, Proceedings of the 2020 Genetic and Evolutionary Computation Conference. New York, NY, USA: Association for Computing Machinery, p. 139–147 (GECCO '20).

Crea.Blender: A Neural Network-Based Image Generation Game to Assess Creativity

Rafner, J., Hjorth, A., Risi, S., Philipsen, L., Dumas, C., Biskjær, M. M., Noy, L., Tylén, K., Bergenholtz, C., Lynch, J., Zana, B. & Sherson, J., 2020, Extended Abstracts of the 2020 Annual Symposium on Computer-Human Interaction in Play. New York, NY, USA: Association for Computing Machinery, p. 340–344

Finding Game Levels with the Right Difficulty in a Few Trials through Intelligent Trial-and-Error

González-Duque, M., Berg Palm, R., Ha, D. & Risi, S., 2020, Proceedings of the 2020 IEEE Conference on Games (CoG). IEEE, p. 503-510 8 p.

Interactive Evolution and Exploration within Latent Level-Design Space of Generative Adversarial Networks

Schrum, J., Gutierrez, J., Volz, V., Liu, J., Lucas, S. & Risi, S., 2020, Proceedings of the 2020 Genetic and Evolutionary Computation Conference. New York, NY, USA: Association for Computing Machinery, p. 148–156

Learning a Behavioral Repertoire from Demonstrations

Justesen, N., González-Duque, M., Cabarcas, D., Mouret, J-B. & Risi, S., 2020, Proceedings of the 2020 IEEE Conference on Games. IEEE, p. 383-390 8 p.

Video Game Description Language Environment for Unity Machine Learning Agents

Johansen, M., Pichlmair, M. & Risi, S., 1 Aug 2019, 2019 IEEE Conference on Games (CoG). IEEE, 8 p.

Towards Continual Reinforcement Learning through Evolutionary Meta-Learning

Grbic, D. & Risi, S., 17 Jul 2019, Towards Continual Reinforcement Learning through Evolutionary Meta-Learning. 2019 ed. New York, NY, USA: Association for Computing Machinery, Vol. Proceedings of the Genetic and Evolutionary Computation Conference Companion. p. 119-120 2 p.

An artificial life approach to studying niche differentiation in soundscape ecology

Kadish, D., Risi, S. & Beloff, L., 2019, The 2019 Conference on Artificial Life: A Hybrid of the European Conference on Artificial Life (ECAL) and the International Conference on the Synthesis and Simulation of Living Systems (ALIFE). MIT Press, p. 52-59 8 p.

Blood bowl: A new board game challenge and competition for AI

Justesen, N., Uth, L. M., Jakobsen, C., Moore, P. D., Togelius, J. & Risi, S., 2019, 2019 IEEE Conference on Games (CoG). IEEE, p. 1-8 8 p.

Deep Neuroevolution of Recurrent and Discrete World Models

Risi, S. & Stanley, K., 2019, GECCO '19: Proceedings of the Genetic and Evolutionary Computation Conference. Association for Computing Machinery, p. 456-462

MAP-Elites for noisy domains by adaptive sampling

Justesen, N., Risi, S. & Mouret, J-B., 2019, Proceedings of the Genetic and Evolutionary Computation Conference Companion: GECCO '19. Association for Computing Machinery, p. 121-122 2 p.

When Are We Done with Games?

Justesen, N. O., Debus, M. S. & Risi, S., 2019, IEEE Conference on Games. IEEE

Evolution of Fin Undulation on a Physical Knifefish-inspired Soft Robot

Veenstra, F., Jørgensen, J. & Risi, S., 15 Jul 2018, GECCO ’18: Genetic and Evolutionary Computation Conference, July 15–19, 2018, Kyoto, Japan. Sartor, J. B., D’Hondt, T. & De Meuter, W. (eds.). New York, NY. USA: Association for Computing Machinery, 8 p.

Towards a Plant Bio-Machine

Nichele, S., Risi, S., Tufte, G. & Beloff, L., 8 Feb 2018, IEEE Alife conference (SSCI) proceedings. IEEE, p. 1-8 8 p. 17544442

A Robot to Shape your Natural Plant: The Machine Learning Approach to Model and Control Bio-Hybrid Systems

Wahby, M., Heinrich, M. K., Hofstadler, D. N., Zahadat, P., Risi, S., Ayres, P., Schmickl, T. & Hamann, H., 2018, Proceedings of the Conference on Genetic and Evolutionary Computation (GECCO 2018). Association for Computing Machinery, p. 165-172

Automated Curriculum Learning by Rewarding Temporally Rare Events

Justesen, N. & Risi, S., 2018, 2018 IEEE Conference on Computational Intelligence and Games. IEEE, p. 293-300 8 p.

Blood Bowl: The Next Board Game Challenge for AI

Justesen, N., Risi, S. & Togelius, J., 2018, Blood Bowl: The Next Board Game Challenge for AI. Association for Computing Machinery, 2 p.

Collaborative interactive evolution in minecraft

de Prado Salas, P. G. & Risi, S., 2018, Proceedings of the Genetic and Evolutionary Computation Conference Companion: GECCO '18. Association for Computing Machinery, p. 127-128 2 p.

Deep interactive evolution

Bontrager, P., Lin, W., Togelius, J. & Risi, S., 2018, International Conference on Computational Intelligence in Music, Sound, Art and Design: EvoMUSART 2018. Springer, p. 267-282 16 p. (Lecture Notes in Computer Science, Vol. 10783).

Evolutionary computation and games tutorial

Togelius, J., Risi, S. & Yannakakis, G., 2018, Proceedings of the Genetic and Evolutionary Computation Conference Companion. Association for Computing Machinery, p. 584-618 35 p.

Evolving in-game mood-expressive music with MetaCompose

Scirea, M., Eklund, P., Togelius, J. & Risi, S., 2018, AM'18 Proceedings of the Audio Mostly 2018 on Sound in Immersion and Emotion. 8 ed. Wrexham, United Kingdom: Association for Computing Machinery, Vol. 1. 8. ( Audio Mostly).

Evolving Mario Levels in the Latent Space of a Deep Convolutional Generative Adversarial Network

Volz, V., Schrum, J., Liu, J., Lucas, S. M., Smith, A. & Risi, S., 2018, Proceedings of the Genetic and Evolutionary Computation Conference: GECCO '18. Association for Computing Machinery, p. 221-228

Explainable AI for designers: A human-centered perspective on mixed-initiative co-creation

Zhu, J., Liapis, A., Risi, S., Bidarra, R. & Youngblood, G. M., 2018, 2018 IEEE Conference on Computational Intelligence and Games (CIG). IEEE, p. 1-8 8 p.

HyperNTM: Evolving Scalable Neural Turing Machines Through HyperNEAT

Merrild, J., Rasmussen, M. A. & Risi, S., 2018, International Conference on the Applications of Evolutionary Computation: EvoApplications 2018. Springer, p. 750-766 17 p. (Lecture Notes in Computer Science, Vol. 10784).

Intrinsic Mortality Governs Evolvability

Veenstra, F., de Prado Salas, P. G., Bongard, J., Stoy, K. & Risi, S., 2018, Artificial Life Conference Proceedings: ALIFE 2018. MIT Press, p. 242-249 8 p.

Towards an experiment on perception of affective music generation using MetaCompose

Scirea, M., Eklund, P., Togelius, J. & Risi, S., 2018, GECCO '18 Proceedings of the Genetic and Evolutionary Computation Conference Companion. New York, NY, USA: Association for Computing Machinery, p. 131-132

Primal-improv: Towards co-evolutionary musical improvisation

Scirea, M., Eklund, P., Togelius, J. & Risi, S., 1 Sep 2017, 2017 9th Computer Science and Electronic Engineering (CEEC). IEEE, p. 172-177 6 p.

Continual Online Evolutionary Planning for In-Game Build Order Adaptation in StarCraft

Justesen, N. O. & Risi, S., 16 Jul 2017, GECCO ’17 Proceedings of the Genetic and Evolutionary Computation Conference. Association for Computing Machinery, p. 187-194

Evolution and Morphogenesis of Simulated Modular Robots: A Comparison Between a Direct and Generative Encoding

Veenstra, F., Faina, A., Risi, S. & Støy, K., 25 Jan 2017, Applications of Evolutionary Computation: 20th European Conference, EvoApplications 2017, Amsterdam, The Netherlands, April 19-21, 2017, Proceedings, Part I. Springer, 16 p. (Lecture Notes in Computer Science, Vol. 10199).

A deep learning / neuroevolution hybrid for visual control

Poulsen, A. P., Thorhauge, M., Funch, M. H. & Risi, S., 2017, GECCO '17 Proceedings of the Genetic and Evolutionary Computation Conference Companion. Association for Computing Machinery, p. 93-94 2 p.

Continual and One-Shot Learning Through Neural Networks with Dynamic External Memory

Lüders, B., Schläger, M., Korach, A. & Risi, S., 2017, European Conference on the Applications of Evolutionary Computation. Springer, p. 886-901 16 p. (Lecture Notes in Computer Science, Vol. 10199).

DLNE: A hybridization of deep learning and neuroevolution for visual control

Poulsen, A. P., Thorhauge, M., Funch, M. H. & Risi, S., 2017, Computational Intelligence and Games (CIG), 2017 IEEE Conference on. IEEE Press, p. 256-263 8 p.

Interactive Evolution of Complex Behaviours Through Skill Encapsulation

González de Prado Salas, P. & Risi, S., 2017, Applications of Evolutionary Computation. EvoApplications 2017: European Conference on the Applications of Evolutionary Computation. Squillero, G. & Sim, K. (eds.). Springer, p. 853-869 (Lecture Notes in Computer Science, Vol. 10199).

Learning macromanagement in starcraft from replays using deep learning

Justesen, N. & Risi, S., 2017, Computational Intelligence and Games (CIG), 2017 IEEE Conference on. IEEE, p. 162-169 8 p.

Generating Artificial Plant Morphologies for Function and Aesthetics through Evolving L-Systems

Veenstra, F., Faina, A., Støy, K. & Risi, S., 4 Jul 2016, Proceedings of the Artificial Life Conference 2016. MIT Press, p. 692-699 8 p. 130

Creative Generation of 3D Objects with Deep Learning and Innovation Engines

Lehman, J. A., Risi, S. & Clune, J., 30 Jun 2016, Proceedings of the Seventh International Conference on Computational Creativity: ICCC 2016. Sony CSL Paris, p. 180-187

MetaCompose: A Compositional Evolutionary Music Composer

Scirea, M., Togelius, J., Eklund, P. & Risi, S., Apr 2016, Evolutionary and Biologically Inspired Music, Sound, Art and Design: 5th International Conference, EvoMUSART 2016, Porto, Portugal, March 30 -- April 1, 2016, Proceedings. Springer Publishing Company, p. 202-217 (Lecture Notes in Computer Science, Vol. 9596).

Accelerating the Evolution of Cognitive Behaviors Through Human-Computer Collaboration

Löwe, M. & Risi, S., 2016, Proceedings of the Genetic and Evolutionary Computation Conference 2016. New York, NY, USA: Association for Computing Machinery, p. 133-140 8 p.

Artefacts: Minecraft meets Collaborative Interactive Evolution

Patrascu, C. & Risi, S., 2016, Proceedings of the 2016 IEEE Conference on Computational Intelligence and Games. IEEE, p. 349-356

Automatic Evolution of Multimodal Behavior with Multi-Brain HyperNEAT

Schrum, J., Lehman, J. & Risi, S., 2016, Proceedings of the 2016 on Genetic and Evolutionary Computation Conference Companion. New York, NY, USA: Association for Computing Machinery, p. 21-22 2 p.

Breeding a Diversity of Super Mario Behaviors Through Interactive Evolution

Sørensen, P. D., Olsen, J. M. & Risi, S., 2016, Proceedings of the 2016 IEEE Conference on Computational Intelligence and Games. IEEE Computer Society Press, p. 357-363

Evolving Neural Turing Machines for Reward-based Learning

Greve, R. B., Jacobsen, E. J., Risi, S. & Greve, R. B., 2016, Proceedings of the Genetic and Evolutionary Computation Conference 2016. New York, NY, USA: Association for Computing Machinery, p. 117-124 8 p.

Interactive Super Mario Bros Evolution

Sørensen, P. D., Olsen, J. M. & Risi, S., 2016, Proceedings of the 2016 on Genetic and Evolutionary Computation Conference Companion. New York, NY, USA: Association for Computing Machinery, p. 41-42 2 p.

Towards Adaptive Evolutionary Architecture

Bak, S. HO., Rask, N. & Risi, S., 2016, Proceedings of the 5th International Conference on Evolutionary and Biologically Inspired Music, Sound, Art and Design - Volume 9596. New York, NY, USA: Springer Publishing Company, p. 47-62 16 p. (Lecture Notes in Informatics, Vol. 9596).

Darwin's Avatars: a Novel Combination of Gameplay and Procedural Content Generation

Lessin, D. & Risi, S., 11 Jul 2015, Proceedings of the Genetic and Evolutionary Computation Conference (GECCO) 2015. Association for Computing Machinery, p. 329-336

BrainCrafter: An investigation into human-based neural network engineering

Piskur, J., Greve, P., Togelius, J. & Risi, S., 1 May 2015, Evolutionary Computation (CEC), 2015 IEEE Congress on. IEEE, p. 2199-2206 8 p.

Interactive evolution of levels for a competitive multiplayer FPS

Olsted, P. T., Ma, B. & Risi, S., 1 May 2015, Evolutionary Computation (CEC), 2015 IEEE Congress on. IEEE, p. 1527-1534 8 p.

DrawCompileEvolve: Sparking interactive evolutionary art with human creations

Zhang, J., Taarnby, R., Liapis, A. & Risi, S., 2015, Evolutionary and Biologically Inspired Music, Sound, Art and Design : 4th International Conference, EvoMUSART 2015, Copenhagen, Denmark, April 8-10, 2015, Proceedings. Springer VS, Vol. 9027. p. 261-273 13 p. (Lecture Notes in Computer Science).

Flora Robotica – Mixed Societies of Symbiotic Robot-Plant Bio-Hybrids

Hamann, H., Wahby, M., Schmickl, T., Zahadat, P., Hofstadler, D., Støy, K., Risi, S., Faina, A., Veenstra, F., Kernbach, S., Kuksin, I., Kernbach, O., Ayers, P. & Wojtaszek, P., 2015, Computational Intelligence, 2015 IEEE Symposium Series on. IEEE, p. 1102-1109 8 p.

Interactively Evolving Compositional Sound Synthesis Networks

Jónsson, B. Þ., Hoover, A. K. & Risi, S., 2015, Proceedings of the 2015 Annual Conference on Genetic and Evolutionary Computation: GECCO '15. New York, NY, USA: Association for Computing Machinery, p. 321-328 8 p.

Investigating MCTS Modifications in General Video Game Playing

Frydenberg, F., Andersen, K., Risi, S. & Togelius, J., 2015, Proceedings of the 2015 IEEE Conference on Computational Intelligence and Games. IEEE Computer Society Press, p. 107-113

Monte-Carlo Tree Search for Simulated Car Racing

Fischer, J., Falsted, N., Vielwerth, M., Togelius, J. & Risi, S., 2015, Proceedings of the 10th International Conference on the Foundations of Digital Games (FDG 2015), June 22-25, 2015, Pacific Grove, CA, USA. Association for Computing Machinery, 5 p.

Soft-Body Muscles for Evolved Virtual Creatures: The Next Step on a Bio-Mimetic Path to Meaningful Morphological Complexity

Lessin, D. & Risi, S., 2015, Proceedings of the European Conference on Artificial Life (ECAL) 2015. MIT Press, p. 604–611

Automatically Categorizing Procedurally Generated Content for Collecting Games

Risi, S., Lehman, J., D’Ambrosio, D. B. & Stanley, K. O., 2014, FDG 2014 Workshop Proceedings: Proceedings of Workshops Colocated with the 9th International Conference on the Foundations of Digital Games. New York, NY: Association for Computing Machinery, (Proceedings of the Workshop on Procedural Content Generation in Games (PCG) at the 9th International Conference on the Foundations of Digital Games (FDG-2014). ACM, New York, NY, USA).

Guided Self-organization in Indirectly Encoded and Evolving Topographic Maps

Risi, S. & Stanley, K. O., 2014, Proceedings of the 2014 Conference on Genetic and Evolutionary Computation. Association for Computing Machinery, p. 713-720 8 p.

Script-and Cluster-based UCT for StarCraft

Justesen, N. O., Tillman, B., Togelius, J. & Risi, S., 2014, Computational Intelligence and Games (CIG), 2014 IEEE Conference on. IEEE Press, p. 1-8 8 p.

Single-unit pattern generators for quadruped locomotion

Morse, G., Risi, S., Snyder, C. R. & Stanley, K. O., 6 Jul 2013, Proceedings of the 15th annual conference on Genetic and evolutionary computation : GECCO '13. Association for Computing Machinery, p. 719-726 8 p.

A Compiler for CPPNs: Transforming Phenotypic Descriptions Into Genotypic Representations

Risi, S., 2013, 2013 AAAI Fall Symposium Series - How Should Intelligence be Abstracted in AI Research.. 7 p.

Confronting the challenge of learning a flexible neural controller for a diversity of morphologies

Risi, S. & Stanley, K. O., 2013, Proceeding of the fifteenth annual conference on Genetic and evolutionary computation conference. Association for Computing Machinery, p. 255-262 8 p.

Ribosomal robots: Evolved designs inspired by protein folding

Risi, S., Cellucci, D. & Lipson, H., 2013, Proceeding of the fifteenth annual conference on Genetic and evolutionary computation conference: GECCO '13. Association for Computing Machinery, p. 263-270 8 p.

A unified approach to evolving plasticity and neural geometry

Risi, S. & Stanley, K. O., 2012, Neural Networks (IJCNN), The 2012 International Joint Conference on. p. 1-8 8 p.

Combining Search-Based Procedural Content Generation and Social Gaming in the Petalz Video Game.

Risi, S., Lehman, J., D'Ambrosio, D. B., Hall, R. & Stanley, K. O., 2012, AIIDE.

Multirobot behavior synchronization through direct neural network communication

D’Ambrosio, D. B., Goodell, S., Lehman, J., Risi, S. & Stanley, K. O., 2012, Intelligent Robotics and Applications. Springer, p. 603-614 12 p.

On the Benefits of Divergent Search for Evolved Representations

Lehman, J., Risi, S. & Stanley, K. O., 2012, Proceedings of the EvoNet2012 Workshop at the Thirteenth International Conference on Artificial Life (ALIFE XIII). 4 p. (Proceedings of the EvoNet 2012 Workshop at ALIFE XIII ).

Enhancing es-hyperneat to evolve more complex regular neural networks

Risi, S. & Stanley, K. O., 2011, Proceedings of the 13th annual conference on Genetic and evolutionary computation. p. 1539-1546 8 p.

Task switching in multirobot learning through indirect encoding

D'Ambrosio, D. B., Lehman, J., Risi, S. & Stanley, K. O., 2011, Intelligent Robots and Systems (IROS), 2011 IEEE/RSJ International Conference on. p. 2802-2809 8 p.

Evolving policy geometry for scalable multiagent learning

D'Ambrosio, D. B., Lehman, J., Risi, S. & Stanley, K. O., 2010, Proceedings of the 9th International Conference on Autonomous Agents and Multiagent Systems: volume 1-Volume 1. p. 731-738 8 p.

Evolving the placement and density of neurons in the hyperneat substrate

Risi, S., Lehman, J. & Stanley, K. O., 2010, Proceedings of the 12th annual conference on Genetic and evolutionary computation. p. 563-570 8 p.

Indirectly encoding neural plasticity as a pattern of local rules

Risi, S. & Stanley, K. O., 2010, From Animals to Animats 11. Springer, p. 533-543 11 p.

How novelty search escapes the deceptive trap of learning to learn

Risi, S., Vanderbleek, S. D., Hughes, C. E. & Stanley, K. O., 2009, Proceedings of the 11th Annual conference on Genetic and evolutionary computation. p. 153-160 8 p.

Visualization and clustering of tagged music data

Lehwark, P., Risi, S. & Ultsch, A., 2008, Data Analysis, Machine Learning and Applications. Springer, p. 673-680 8 p.