Abstract
In this paper we report the results of a comprehensive comparative analysis of the performances of six local models applied to the task of learning the inverse kinematics of a redundant robotic arm (Motoman HP6). The evaluated algorithm are the following ones: SOM-based Local Linear Mapping (LLM), Radial Basis Functions Network (RBFN), Local Model Network (LMN), Local Weighted Regression (LWR), Takagi-Sugeno-Kang Fuzzy Model (TSK) and Local Linear Mapping over K-winners (KSOM). Each algorithm is evaluated with respect to its accuracy in estimating the joint angles given the Cartesian coordinates along end-effector trajectories within the robot workspace. Also, a careful evaluation of the performances of the aforementioned algorithms is carried out based on correlation analysis of the residuals of the best model.
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Notes
- 1.
Available for download from www.cis.hut.fi/somtoolbox/.
- 2.
Available in the Robotics Toolbox for Matlab [2].
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Acknowledgments
Authors thank CNPq (grant 309841/2012-7) and NUTEC for their financial support.
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© 2016 Springer International Publishing Switzerland
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Fontinele, H.I., Melo, D.B., Barreto, G.A. (2016). Local Models for Learning Inverse Kinematics of Redundant Robots: A Performance Comparison. In: Merényi, E., Mendenhall, M., O'Driscoll, P. (eds) Advances in Self-Organizing Maps and Learning Vector Quantization. Advances in Intelligent Systems and Computing, vol 428. Springer, Cham. https://doi.org/10.1007/978-3-319-28518-4_15
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DOI: https://doi.org/10.1007/978-3-319-28518-4_15
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