Publications

Dissertation: Towards Evolving More Brain-like Artificial Neural Networks

2017

Towards a Plant Bio-Machine
Stefano Nichele, Sebastian Risi, Gunnar Tufte and Laura Beloff
To appear: 2017 IEEE Symposium Series on Computational Intelligence (SSCI 2017)

Deep Learning for Video Game Playing
Niels Justesen, Philip Bontrager, Julian Togelius, Sebastian Risi
In arXiv preprint: arXiv:1708.07902 [cs.AI]

Towards Energy Autonomy in Heterogeneous Modular Plant-Inspired Robots through Artificial Evolution
Frank Veenstra, Chloe Metayer, Sebastian Risi, Kasper Stoy
Accepted to appear: Frontiers in Robotics and AI, section Bionics and Biomimetics, 2017.

flora robotica – An Architectural System Combining Living Natural Plants and Distributed Robots
Heiko Hamann, Mohammad Divband Soorati, Mary Katherine Heinrich, Daniel Nicolas Hofstadler, Igor Kuksin, Frank Veenstra, Mostafa Wahby, Stig Anton Nielsen,  Sebastian Risi, Tomasz Skrzypczak, Payam Zahadat, Przemyslaw Wojtaszek, Kasper Stoy, Thomas Schmickl, Serge Kernbach and Phil Ayres
To appear in: Living Architectures Workshop 2017, at the European Conference on Artificial Life (ECAL) 2017.

Playing Multi-Action Adversarial Games: Online Evolution vs. Tree Search
Niels Justesen, Tobias Mahlmann, Sebastian Risi and Julian Togelius (2017)
Accepted to appear in: IEEE Transactions on Computational Intelligence and AI in Games (TCIAIG).

CA-NEAT: Evolved Compositional Pattern Producing Networks for Cellular Automata Morphogenesis and Replication
Stefano Nichele, Mathias Berild Ose, Sebastian Risi, Gunnar Tufte (2017)
Accepted to appear in: IEEE Transactions on Cognitive and Developmental Systems.

Learning Macromanagement in StarCraft from Replays using Deep Learning
Niels Justesen and Sebastian Risi (2017)
To appear in: Proceedings of the IEEE Conference on Computational Intelligence and Games (CIG 2017).

Affective Evolutionary Music Composition with MetaCompose
Marco Scirea, Julian Togelius, Peter Eklund and Sebastian Risi (2017)
To appear in: Genetic Programming and Evolvable Machines.

1D Printing of  Recyclable Robots
Daniel Cellucci, Robert MacCurdy, Hod Lipson, Sebastian Risi (2017)
Accepted to appear in: IEEE Robotics and Automation Letters (RA-L). IEEE link: http://ieeexplore.ieee.org/document/7950924/

DLNE: A Hybridization of Deep Learning and Neuroevolution for Visual Control
Andreas Precht Poulsen, Mark Thorhauge, Mikkel Hvilshøj Funch and Sebastian Risi
To appear in: Proceedings of the IEEE Conference on Computational Intelligence and Games (CIG 2017).

Can You Feel It? Evaluation of Affective Expression in Music Generated by MetaCompose
Marco~Scirea, Peter Eklund, Julian Togelius, and Sebastian Risi
To appear in: Proceedings of the Conference on Genetic and Evolutionary Computation (GECCO 2017). New York, NY: ACM (8 pages).

Continual Online Evolutionary Planning for In-Game Build Order Adaptation in StarCraft
Niels Justesen and Sebastian Risi
To appear in: Proceedings of the Conference on Genetic and Evolutionary Computation (GECCO 2017). New York, NY: ACM (8 pages).

Automating the Incremental Evolution of Controllers for Physical Robots
Andrés Faíña, Lars Toft Jacobsen, Sebastian Risi
Accepted to appear in: Artificial Life Special Issue on the Evolution of Physical Systems.

Born to Learn: the Inspiration, Progress, and Future of Evolved Plastic Artificial Neural Networks
Andrea Soltoggio, Kenneth O. Stanley, Sebastian Risi
In: arXiv preprint: https://arxiv.org/abs/1703.10371

Evolution and Morphogenesis of Simulated Modular Robots: A Comparison Between a Direct and Generative Encoding
Frank Veenstra,  Andres Faina,  Sebastian Risi,  Kasper Stoy
To appear in: Proceedings of the 20th European Conference on the Applications of Evolutionary Computation (EvoApplications 2017)

Interactive Evolution of Complex Behaviours through Skill Encapsulation
Pablo González de Prado Salas,  Sebastian Risi
To appear in: Proceedings of the 20th European Conference on the Applications of Evolutionary Computation (EvoApplications 2017)

Continual and One-Shot Learning through Neural Networks with Dynamic External Memory
Benno Lüders,  Mikkel Schläger,  Aleksandra Korach, and  Sebastian Risi
To appear in: Proceedings of the 20th European Conference on the Applications of Evolutionary Computation (EvoApplications 2017)

2016

Continual Learning through Evolvable Neural Turing Machines
Benno Lüders, Mikkel Schläger and Sebastian Risi
To appear In: Proceedings of the NIPS 2016 Workshop on Continual Learning and Deep Networks (CLDL 2016). Oral Presentation
Winner of the Best Paper Award

Breeding a Diversity of Super Mario Behaviors Through Interactive Evolution
Patrikk D. Sørensen, Jeppeh M. Olsen and Sebastian Risi
To appear in: Proceedings of the 2016 IEEE Conference on Computational Intelligence and Games
Source code available here

Artefacts: Minecraft meets Collaborative Interactive Evolution
Cristinel Patrascu and Sebastian Risi
To appear in: Proceedings of the 2016 IEEE Conference on Computational Intelligence and Games

Creative Generation of 3D Objects with Deep Learning and Innovation Engines
Joel Lehman, Sebastian Risi, and Jeff Clune
To appear in: The Seventh International Conference on Computational Creativity (ICCC 2016).

WebAL Comes of Age:  A review of the first 21 years of Artificial Life on the Web
Tim Taylor, Joshua E. Auerbach, Josh Bongard, Jeff Clune, Simon Hickinbotham, Charles Ofria, Mizuki Oka, Sebastian Risi, Kenneth O. Stanley, Jason Yosinski
Accepted to appear in: Artificial Life journal.

Generating Artificial Phytomorphologies for Function and Aesthetics through Evolving L-Systems
Frank Veenstra, Andres Faina, Kasper Stoy and Sebastian Risi
Accepted to appear in: Proceedings of The Fifteenth International Conference on the Simulation and Synthesis of Living Systems (ALife XV)

Automatic Evolution of Multimodal Behavior with Multi-Brain HyperNEAT
Jacob Schrum, Joel Lehman, Sebastian Risi
Abstract to appear in: Companion to the Proceedings of the Conference on Genetic and Evolutionary Computation (GECCO Companion 2016). New York, NY: ACM (2 pages).
More information and videos: http://people.southwestern.edu/~schrum2/re/mb-hyperneat.html

Interactive Super Mario Bros Evolution
Patrikk D. Sørensen, Jeppeh M. Olsen and Sebastian Risi
Abstract to appear in: Companion to the Proceedings of the Conference on Genetic and Evolutionary Computation (GECCO Companion 2016). New York, NY: ACM (2 pages).
Conference (GECCO-2016). New York, NY: ACM (2 pages).

Accelerating the Evolution of Cognitive Behaviors Through Human-Computer Collaboration
Mathias Löwe and Sebastian Risi
Accepted to appear in: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2016). New York, NY: ACM (8 pages).

Evolving Neural Turing Machines for Reward-based Learning
Rasmus Boll Greve, Emil Juul Jacobsen, and Sebastian Risi
Accepted to appear in: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2016). New York, NY: ACM (8 pages).

EvoCommander: A Novel Game Based on Evolving and Switching Between Artificial Brains
Daniel Jallov, Sebastian Risi, Julian Togelius
Accepted to appear in:  IEEE Transactions on Computational Intelligence and AI in Games (TCIAIG).

Towards Adaptive Evolutionary Architecture
Sebastian Bak,  Nina Rask,  Sebastian Risi
To appear in: Proceedings of Evolutionary and Biologically Inspired Music, Sound, Art and Design (EvoMusArt), 2016.

MetaCompose: A Compositional Evolutionary Music Composer
Marco Scirea,  Julian Togelius,  Peter Eklund,  Sebastian Risi
To appear in: Proceedings of Evolutionary and Biologically Inspired Music, Sound, Art and Design (EvoMusArt), 2016.
Winner of a best paper award

2015

Increasing Behavioral Complexity for Evolved Virtual Creatures with the ESP Method
Dan Lessin, Don Fussell, Risto Miikkulainen, Sebastian Risi
In: ArXiv e-prints. E-print no.arXiv:1510.07957. Submitted Oct 2015

Evolving Neural Turing Machines
Rasmus Boll Greve, Emil Juul Jacobsen, and Sebastian Risi
To appear in: Proceedings of the NIPS 2015 Workshop on Reasoning, Attention, Memory (RAM) 

Neuroevolution in Games: State of the Art and Open Challenges
Sebastian Risi and Julian Togelius
To appear in: IEEE Transactions on Computational Intelligence and AI in Games (TCIAIG), 2015.

Flora Robotica – Mixed Societies of Symbiotic Robot-Plant Bio-Hybrids
Heiko Hamann, Mostafa Wahby, Thomas Schmickl, Payam Zahadat, Daniel Hofstadler, Kasper Stoy, Sebastian Risi, Andres Faina, Frank Veenstra, Serge Kernbach, Igor Kuksin, Olga Kernbach, Phil Ayres and Przemyslaw Wojtaszek
To appear in: Proceedings of the 2015 IEEE Symposium on Artificial Life (IEEE ALIFE’15)

Investigating MCTS Modifications in General Video Game Playing
Frederik Frydenberg, Kasper Andersen, Sebastian Risi and Julian Togelius
To appear in: Proceedings of the 2015 IEEE Conference on Computational Intelligence and Games

Soft-Body Muscles for Evolved Virtual Creatures: The Next Step on a Bio-Mimetic Path to Meaningful Morphological Complexity
Dan Lessin and Sebastian Risi
To appear in: Proceedings of the 13th European Conference on Artificial Life (ECAL 2015)
Video: https://youtu.be/dSlHoIBDdlc

Monte-Carlo Tree Search for Simulated Car Racing
Jacob Fischer, Nikolaj Falsted, Mathias Vielwerth, Julian Togelius and Sebastian Risi
To appear in: Proceedings of the Foundations of Digital Games Conference (FDG 2015)

Darwin’s Avatars: a Novel Combination of Gameplay and Procedural Content Generation
Dan Lessin and Sebastian Risi
To appear in: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2015). New York, NY: ACM (8 pages).
Video: http://youtu.be/p42wPQ3FYLU

Interactively Evolving Compositional Sound Synthesis Networks
Björn Þór Jónsson, Amy Hoover, and Sebastian Risi
To appear in: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2015). New York, NY: ACM (8 pages).

Petalz: Search-based Procedural Content Generation for the Casual Gamer
Sebastian Risi, Joel Lehman, David B. D’Ambrosio, Ryan Hall and Kenneth Stanley
In: IEEE Transactions on Computational Intelligence and AI in Games (TCIAIG), 2015.

Interactive Evolution of Levels for a Competitive Multiplayer FPS
Peter Olsted, Benjamin Ma and Sebastian Risi
To appear In: Proceedings of the IEEE Congress on Evolutionary Computation (IEEE CEC 2015)

BrainCrafter: An Investigation Into Human-based Neural Network Engineering
Jan Piskur, Peter Greve, Julian Togelius and Sebastian Risi
To appear In: Proceedings of the IEEE Congress on Evolutionary Computation (IEEE CEC 2015)

DrawCompileEvolve: Sparking Interactive Evolutionary Art with Human Creations
Jinhong Zhang, Rasmus Taarnby, Antonios Liapis, and Sebastian Risi
In: Proceedings of Evolutionary and Biologically Inspired Music, Sound, Art and Design (EvoMusArt), 2015.

2014

An Anarchy of Methods: Current Trends in How Intelligence Is Abstracted in AI
Joel Lehman, Jeff Clune, Sebastian Risi
In: IEEE Intelligent Systems, 2014

Neuroevolution in Games: State of the Art and Open Challenges
Sebastian Risi and Julian Togelius
In: ArXiv e-prints. E-print no. 1410.7326. Submitted Nov 2014
Note:  This arxiv paper is now superseded by the TCIAIG version by the same name (above).

The Case for a Mixed-Initiative Collaborative Neuroevolution Approach
Sebastian Risi, Jinhong Zhang, Rasmus Taarnby, Peter Greve, Jan Piskur, Antonios Liapis, Julian Togelius (2014). In: Proceedings of the Workshop on Artificial Life and the Web (WebAL-1) at the 14th International Conference on the Synthesis & Simulation of Living Systems (ALIFE-14).

Representations for Search-based Methods (invited book chapter)
Dan Ashlock, Sebastian Risi, Julian Togelius
To appear in: Procedural Content Generation in Games: A Textbook and an Overview of Current Research. Springer. 2014.

Script- and Cluster-based UCT for StarCraft
Niels Justesen, Balint Tillman, Julian Togelius, Sebastian Risi
In: Proceedings of the IEEE Conference on Computational Intelligence and Games (CIG-2014). Piscataway, NJ:IEEE.

Guided Self-Organization in Indirectly Encoded and Evolving Topographic Maps
Sebastian Risi and Kenneth Stanley
To appear in: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2014). New York, NY: ACM (8 pages).

Automatically Categorizing Procedurally Generated Content for Collecting Games
Sebastian Risi, Joel Lehman, David D’Ambrosio and Kenneth Stanley (2014)
To appear in:  Proceedings of the Workshop on Procedural Content Generation in Games (PCG) at the 9th International Conference on the Foundations of Digital Games (FDG-2014). New York, NY: ACM

2013

A Compiler for CPPNs: Transforming Phenotypic Descriptions Into Genotypic Representations
Sebastian Risi (2013)
In: 2013 AAAI Fall Symposium Series – How Should Intelligence be Abstracted in AI Research.

CPPNs Effectively Encode Fracture: A Response to Critical Factors in the Performance of HyperNEAT
Kenneth O. Stanley, Jeff Clune, David B. D’Ambrosio, Colin D. Green, Joel Lehman, Gregory Morse, Justin K. Pugh, Sebastian Risi, and Paul Szerlip
University of Central Florida Dept. of EECS Technical Report CS-TR-13-05

Encouraging Reactivity to Create Robust Machines
Joel Lehman, Sebastian Risi, David D’Ambrosio and Kenneth Stanley (2013)
In: Adaptive Behavior journal.

Ribosomal Robots: Evolved Designs Inspired by Protein Folding
Sebastian Risi, Daniel Cellucci, Hod Lipson (2013)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2013). New York, NY: ACM (8 pages).

Confronting the Challenge of Learning a Flexible Neural Controller for a Diversity of Morphologies
Sebastian Risi and Kenneth Stanley (2013)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2013). New York, NY: ACM (8 pages).
Note: Videos of this best evolved controller are available at: http://youtu.be/oLSSt5GyHNk

Single-Unit Pattern Generators for Quadruped Locomotion
Gregory Morse, Sebastian Risi, and Kenneth Stanley (2013)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2013). New York, NY: ACM (8 pages).

2012

An Enhanced Hypercube-Based Encoding for Evolving the Placement, Density, and Connectivity of Neurons
Sebastian Risi and Kenneth O. Stanley (2012)
In: Artifi cial Life journal.

Introducing a Marketplace for Evolved Content in the Petalz Social Video Game
Sebastian Risi, Joel Lehman, David D’Ambrosio, Ryan Hall and Kenneth Stanley (2012)
In: Proceedings of the Eighth Annual AAAI Conference on Arti cial Intelligence and Interactive Digital Entertainment (AIIDE 2012).

Multirobot Behavior Synchronization through Direct Neural Network Communication
David D’Ambrosio, Skyler Goodell, Joel Lehman, Sebastian Risi and Kenneth Stanley (2012)
In: Proceedings International Conference on Intelligent Robotics and Applications (ICIRA 2012).
Note: This paper is accompanied with a set of video demos at http://eplex.cs.ucf.edu/demos/hive-brain-patrol.

The Bene ts of Divergent Search for Evolved Representations
Joel Lehman, Sebastian Risi and Kenneth Stanley (2012)
In: Proceedings of the Workshop of the Thirteen International Conference on Arti cial Life (ALIFE XIII). Cambridge, MA: MIT Press.

Rewarding Reactivity to Evolve Robust Controllers without Multiple Trials or Noise
Joel Lehman, Sebastian Risi, David D’Ambrosio and Kenneth Stanley (2012)
In: Proceedings of the Thirteen International Conference on Arti ficial Life (ALIFE XIII). Cambridge, MA: MIT Press.

A Uni fied Approach to Evolving Plasticity and Neural Geometry
Sebastian Risi and Kenneth O. Stanley (2012)
In: Proceedings of the International Joint Conference on Neural Networks (IJCNN-2012). New York, NY: IEEE.
Winner of the Best Student Paper Award (out of 299 papers submitted with student fi rst authors)

2011

Task Switching in Multiagent Learning through Indirect Encoding
David B. D’Ambrosio, Joel Lehman, Sebastian Risi, and Kenneth O. Stanley (2011)
In: Proceedings of the International Conference on Intelligent Robots and Systems (IROS 2011 San Fransisco, CA).

Enhancing ES-HyperNEAT to Evolve More Complex Regular Neural Networks
Sebastian Risi and Kenneth O. Stanley (2011)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2011, Dublin, Ireland). New York, NY: ACM (8 pages).
Nominated for a Best Paper Award in the GDS Track at GECCO-2011

2010

Evolving Plastic Neural Networks with Novelty Search
Sebastian Risi, Charles E. Hughes, and Kenneth O. Stanley (2010)
In:  Adaptive Behavior journal, London: SAGE, 2010 (41 pages).

Indirectly Encoding Neural Plasticity as a Pattern of Local Rules
Sebastian Risi and Kenneth O. Stanley (2010)
In: Proceedings of the 11th International Conference on Simulation of Adaptive Behavior (SAB 2010). New York, NY: Springer (11 pages)

Evolving the Placement and Density of Neurons in the HyperNEAT Substrate
Sebastian Risi, Joel Lehman, and Kenneth O. Stanley (2010)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO-2010). New York, NY:ACM (8 pages)
Winner of the Best Paper Award in the GDS Track at GECCO-2010

Evolving Policy Geometry for Scalable Multiagent Learning
David B. D’Ambrosio, Joel Lehman, Sebastian Risi, and Kenneth O. Stanley
In: Proceedings of the Ninth International Conference on Autonomous Agents and Multiagent Systems (AAMAS-2010). 2010 (8 pages).
Note: This paper is accompanied with a set of videos

2009

How Novelty Search Escapes the Deceptive Trap of Learning to Learn
Sebastian Risi, Sandy Vanderbleek, Charles Hughes and Kenneth Stanley
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO 2009). New York, NY: ACM, 2009. 8 pages.
Winner of a Best Paper Award at GECCO-2009

2007

Visual mining in music collections with Emergent SOM
Sebastian Risi, Fabian Mörchen, Alfred Ultsch and Pascal Lehwark
In: Proceedings Workshop on Self-Organizing Maps (WSOM ’07),  Bielefeld, Germany.

Visualization and clustering of tagged music data
Pascal Lehwark, Sebastian Risi and Alfred Ultsch
In: Proceedings 31st Annual Conference of the German Classification Society (GfKl 2007), Freiburg, Germany