no code implementations • 9 Sep 2024 • Markus Knauer, Alin Albu-Schäffer, Freek Stulp, João Silvério
The problem of generalization in learning from demonstration (LfD) has received considerable attention over the years, particularly within the context of movement primitives, where a number of approaches have emerged.
no code implementations • 15 Sep 2022 • Antonin Raffin, Daniel Seidel, Jens Kober, Alin Albu-Schäffer, João Silvério, Freek Stulp
Spring-based actuators in legged locomotion provide energy-efficiency and improved performance, but increase the difficulty of controller design.
4 code implementations • 12 May 2020 • Antonin Raffin, Jens Kober, Freek Stulp
We evaluate gSDE both in simulation, on PyBullet continuous control tasks, and directly on three different real robots: a tendon-driven elastic robot, a quadruped and an RC car.
Ranked #1 on Continuous Control on PyBullet HalfCheetah
no code implementations • 27 Jun 2019 • Sebastian Riedel, Freek Stulp
Physical modeling of robotic system behavior is the foundation for controlling many robotic mechanisms to a satisfactory degree.
no code implementations • 19 Feb 2019 • Chenyang Zhao, Olivier Sigaud, Freek Stulp, Timothy M. Hospedales
Deep Reinforcement Learning has shown great success in a variety of control tasks.
no code implementations • 6 Jul 2018 • Konstantinos Chatzilygeroudis, Vassilis Vassiliades, Freek Stulp, Sylvain Calinon, Jean-Baptiste Mouret
Most policy search algorithms require thousands of training episodes to find an effective policy, which is often infeasible with a physical robot.
no code implementations • 13 Mar 2018 • Olivier Sigaud, Freek Stulp
Continuous action policy search is currently the focus of intensive research, driven both by the recent success of deep reinforcement learning algorithms and the emergence of competitors based on evolutionary algorithms.
no code implementations • 14 Dec 2017 • Freek Stulp, Pierre-Yves Oudeyer
Here, we formulate and study computationally the hypothesis that such patterns can emerge spontaneously as the result of a family of stochastic optimization processes (evolution strategies with covariance-matrix adaptation), without an innate encoding of a maturational schedule.
no code implementations • 10 Dec 2015 • Olivier Sigaud, Clément Masson, David Filliat, Freek Stulp
Gated networks are networks that contain gating connections, in which the outputs of at least two neurons are multiplied.
no code implementations • 18 Jan 2014 • Freek Stulp, Andreas Fedrizzi, Lorenz Mösenlechner, Michael Beetz
We propose the concept of Action-Related Place (ARPlace) as a powerful and flexible representation of task-related place in the context of mobile manipulation.
no code implementations • 18 Jun 2012 • Freek Stulp, Olivier Sigaud
There has been a recent focus in reinforcement learning on addressing continuous state and action problems by optimizing parameterized policies.