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• W3100238596 abstract "We present an Imitation Learning approach for the control of dynamical systems with a known model. Our policy search method is guided by solutions from Model Predictive Control (MPC). Typical policy search methods of this kind minimize a distance metric between the guiding demonstrations and the learned policy. Our loss function, however, corresponds to the minimization of the control Hamiltonian, which derives from the principle of optimality. Therefore, our algorithm directly attempts to solve the optimality conditions with a parameterized class of control laws. Additionally, the proposed loss function explicitly encodes the constraints of the optimal control problem and we provide numerical evidence that its minimization achieves improved constraint satisfaction. We train a mixture-of-expert neural network architecture for controlling a quadrupedal robot and show that this policy structure is well suited for such multimodal systems. The learned policy can successfully stabilize different gaits on the real walking robot from less than 10 min of demonstration data." @default.
• W3100238596 created "2020-11-23" @default.
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• W3100238596 date "2020-04-01" @default.
• W3100238596 modified "2023-10-18" @default.
• W3100238596 title "MPC-Net: A First Principles Guided Policy Search" @default.
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• W3100238596 doi "https://doi.org/10.1109/lra.2020.2974653" @default.
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