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author = {Khansari Zadeh, S. M. and Billard, A.},
title = {Imitation learning of Globally Stable Non-Linear Point-to-Point Robot Motions using Nonlinear Programming},
howpublished = {Proceedings of the 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2010},
year = {0000},
abstract = {This paper presents a method to learn arbitrary discrete motions from a set of demonstrations. We model a motion as a nonlinear autonomous (i.e. time-invariant) dynamical system, and define the sufficient conditions to make such a system globally asymptotically stable at the target. The convergence of all trajectories is ensured starting from any point in the operational space. Estimation of the model's parameters is done through non-linear programming by formulating the problem as an optimization under non-linear constraints. Being time-invariant and globally stable, the system is able to handle both temporal and spatial perturbations, while performing the motion as close to the demonstrations as possible. The method is evaluated through a set of robotic experiments.},

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