Sparse Gaussian process regression in real-time myoelectric control
- Publisher:
- Inderscience Publishers
- Publication Type:
- Journal Article
- Citation:
- International Journal of Modelling, Identification and Control, 2021, 39, (1), pp. 51-60
- Issue Date:
- 2021-01-01
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Filename | Description | Size | |||
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ijmic.2021.123372.pdf | Published version | 1.95 MB |
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In myoelectric control, nonlinear regression models, Gaussian process (GP) in specific, have shown promising accuracy in estimation, but no study has been conducted to evaluate the real-time performance of GP regression. In this work, the real-time performance of sparse GP regression is evaluated with 17 able-bodied subjects. Unlike the existing training methods, in which training protocols are strictly pre-determined, a novel training method is proposed. The subjects' real-time performance adjusts training time and the number of training samples. While the majority of subjects showed similar learning rates, there was a significant difference between a few subjects (p < 0.05). As a result of real-time performance, the subjects completed 97% of the average tasks and achieved 80% path efficiency comparable to existing methods.
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