1 code implementation • 22 Apr 2024 • Alican Mertan, Nick Cheney
Finding controllers that perform well across multiple morphologies is an important milestone for large-scale robotics, in line with recent advances via foundation models in other areas of machine learning.
no code implementations • 14 Feb 2024 • Alican Mertan, Nick Cheney
We hope the insights we share with this work attract more attention to the problem and help us to enable efficient brain-body co-optimization.
no code implementations • 12 Oct 2023 • Lapo Frati, Neil Traft, Jeff Clune, Nick Cheney
We show that our zapping procedure results in improved transfer accuracy and/or more rapid adaptation in both standard fine-tuning and continual learning settings, while being simple to implement and computationally efficient.
1 code implementation • 5 Jul 2023 • Jackson Dean, Nick Cheney
Current approaches to many-objective optimization often require challenging assumptions, like knowledge of the importance/difficulty of objectives in a weighted-sum single-objective paradigm, or enormous populations to overcome the curse of dimensionality in multi-objective Pareto optimization.
1 code implementation • 4 Jul 2023 • Csenge Petak, Lapo Frati, Melissa H. Pespeni, Nick Cheney
In contrast, conservative bet-hedgers have a set of offspring that all have an in-between phenotype compared to the specialists.
1 code implementation • 12 Jun 2023 • Alican Mertan, Nick Cheney
Soft robotics is a rapidly growing area of robotics research that would benefit greatly from design automation, given the challenges of manually engineering complex, compliant, and generally non-intuitive robot body plans and behaviors.
no code implementations • 29 Sep 2021 • Gabriel Meyer-Lee, Nick Cheney
We frame supernet NAS as a two-stage search, decoupling the training of the supernet from the extraction of a final design from the supernet.
no code implementations • 26 Aug 2021 • Shawn L. Beaulieu, Jeff Clune, Nick Cheney
Past efforts to engineer such systems have sought to build or regulate artificial neural networks using disjoint sets of weights that are uniquely sensitive to specific tasks or inputs.
5 code implementations • 21 Feb 2020 • Shawn Beaulieu, Lapo Frati, Thomas Miconi, Joel Lehman, Kenneth O. Stanley, Jeff Clune, Nick Cheney
Continual lifelong learning requires an agent or model to learn many sequentially ordered tasks, building on previous knowledge without catastrophically forgetting it.
no code implementations • 15 Oct 2019 • Joshua Powers, Ryan Grindle, Sam Kriegman, Lapo Frati, Nick Cheney, Josh Bongard
Catastrophic forgetting continues to severely restrict the learnability of controllers suitable for multiple task environments.
1 code implementation • 6 Apr 2018 • Sam Kriegman, Nick Cheney, Francesco Corucci, Josh C. Bongard
Typically, AI researchers and roboticists try to realize intelligent behavior in machines by tuning parameters of a predefined structure (body plan and/or neural network architecture) using evolutionary or learning algorithms.
no code implementations • 9 Mar 2018 • Joel Lehman, Jeff Clune, Dusan Misevic, Christoph Adami, Lee Altenberg, Julie Beaulieu, Peter J. Bentley, Samuel Bernard, Guillaume Beslon, David M. Bryson, Patryk Chrabaszcz, Nick Cheney, Antoine Cully, Stephane Doncieux, Fred C. Dyer, Kai Olav Ellefsen, Robert Feldt, Stephan Fischer, Stephanie Forrest, Antoine Frénoy, Christian Gagné, Leni Le Goff, Laura M. Grabowski, Babak Hodjat, Frank Hutter, Laurent Keller, Carole Knibbe, Peter Krcah, Richard E. Lenski, Hod Lipson, Robert MacCurdy, Carlos Maestre, Risto Miikkulainen, Sara Mitri, David E. Moriarty, Jean-Baptiste Mouret, Anh Nguyen, Charles Ofria, Marc Parizeau, David Parsons, Robert T. Pennock, William F. Punch, Thomas S. Ray, Marc Schoenauer, Eric Shulte, Karl Sims, Kenneth O. Stanley, François Taddei, Danesh Tarapore, Simon Thibault, Westley Weimer, Richard Watson, Jason Yosinski
Biological evolution provides a creative fount of complex and subtle adaptations, often surprising the scientists who discover them.
1 code implementation • 20 Nov 2017 • Sam Kriegman, Nick Cheney, Josh Bongard
Here, we report on a previously unknown phenomenon when embodied agents are allowed to develop and evolve: Evolution discovers body plans robust to control changes, these body plans become genetically assimilated, yet controllers for these agents are not assimilated.
no code implementations • 17 Nov 2017 • Francesco Corucci, Nick Cheney, Francesco Giorgio-Serchi, Josh Bongard, Cecilia Laschi
Designing soft robots poses considerable challenges: automated design approaches may be particularly appealing in this field, as they promise to optimize complex multi-material machines with very little or no human intervention.
1 code implementation • 22 Jun 2017 • Sam Kriegman, Nick Cheney, Francesco Corucci, Josh C. Bongard
Different subsystems of organisms adapt over many time scales, such as rapid changes in the nervous system (learning), slower morphological and neurological change over the lifetime of the organism (postnatal development), and change over many generations (evolution).
no code implementations • 19 Jun 2017 • Nick Cheney, Josh Bongard, Vytas SunSpiral, Hod Lipson
In psychology, the theory of embodied cognition posits that behavior arises from a close coupling between body plan and sensorimotor control, which suggests why co-optimizing these two subsystems is so difficult: most evolutionary changes to morphology tend to adversely impact sensorimotor control, leading to an overall decrease in behavioral performance.
no code implementations • 17 Apr 2013 • Nick Cheney, Jeff Clune, Jason Yosinski, Hod Lipson
Interactive evolution has shown the potential to create amazing and complex forms in both 2-D and 3-D settings.