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• W3135649981 abstract "Humanoid robots are made to resemble humans but their locomotion abilities are far from ours in terms of agility and versatility. When humans walk on complex terrains, or face external disturbances, they combine a set of strategies, unconsciously and efficiently, to regain stability. This paper tackles the problem of developing a robust omnidirectional walking framework, which is able to generate versatile and agile locomotion on complex terrains. The Linear Inverted Pendulum Model and Central Pattern Generator concepts are used to develop a closed-loop walk engine that is combined with a reinforcement learning module. This module learns to regulate the walk engine parameters adaptively and generates residuals to adjust the robot's target joint positions (residual physics). Additionally, we propose a proximal symmetry loss to increase the sample efficiency of the Proximal Policy Optimization algorithm by leveraging model symmetries. The effectiveness of the proposed framework was demonstrated and evaluated across a set of challenging simulation scenarios. The robot was able to generalize what it learned in one scenario, by displaying human-like locomotion skills in unforeseen circumstances, even in the presence of noise and external pushes." @default.
• W3135649981 created "2021-03-15" @default.
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• W3135649981 date "2021-03-01" @default.
• W3135649981 modified "2023-09-27" @default.
• W3135649981 title "A CPG-Based Agile and Versatile Locomotion Framework Using Proximal Symmetry Loss." @default.
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• W3135649981 hasPublicationYear "2021" @default.
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