Biologically-inspired motion modeling and neural control for robot learning from demonstrations

Chenguang Yang, Chuize Chen, Ning Wang, Zhaojie Ju, Jian Fu, Min Wang

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In this paper, we propose a biologically-inspired framework for robot learning based on demonstrations. The dynamic movement primitive (DMP), which is motivated by neurobiology and human behavior, is employed to model a robotic motion that is generalizable. However, the DMP method can only be used to handle a single demonstration. To enable the robot to learn from multiple demonstrations, the DMP is combined with the Gaussian mixture model (GMM) to integrate the features of multiple demonstrations, where the conventional GMM is further replaced by the Fuzzy GMM (FGMM) to improve the fitting performance. Also, a novel regression algorithm for FGMM is derived to retrieve the nonlinear term of the DMP. Additionally, a neural network based controller is developed for the robot to track the generated motions. In this network, the cerebellar model articulation controller (CMAC) is employed to compensate for the unknown robot dynamics. The experiments have been performed on a Baxter robot to demonstrate the effectiveness of the proposed methods.
Original languageEnglish
Article number0
Pages (from-to)281-291
JournalIEEE Transactions on Cognitive and Developmental Systems
Issue number2
Early online date21 Aug 2018
Publication statusEarly online - 21 Aug 2018


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