Erratum: Jamšek et al. Gaussian Mixture Models for Control of Quasi-Passive Spinal Exoskeletons. Sensors 2020, 20, 2705

Marko Jamšek; Tadej Petrič; Jan Babič

doi:10.3390/s21217359

,

and

¹

Laboratory for Neuromechanics and Biorobotics, Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, 1000 Ljubljana, Slovenia

²

Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia

^*

Author to whom correspondence should be addressed.

Sensors2021, 21(21), 7359;https://doi.org/10.3390/s21217359

This article belongs to the Section Physical Sensors

Version Notes

Order Reprints

There was an error in the original article [1]. The variable used for the superscript in the denominator of the equation, denoting the dimensionality of the model, was incorrectly written as K and thus conflicted with the variable denoting the number of Gaussian mixtures. A correction has therefore been made to Section 2.3, Equation (4):

p_{j} (x) = \sum_{k = 1}^{K} τ_{k} (\frac{e^{- \frac{1}{2} {(x - μ_{k})}^{T} Σ_{k}^{- 1} (x - μ_{k})}}{\sqrt{{(2 π)}^{D} | Σ_{k} |}}),

(4)

where D is the dimensionality of the model (6 in our case).

Reference

Jamšek, M.; Petrič, T.; Babič, J. Gaussian Mixture Models for Control of Quasi-Passive Spinal Exoskeletons. Sensors 2020, 20, 2705. [Google Scholar] [CrossRef] [PubMed]

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Erratum: Jamšek et al. Gaussian Mixture Models for Control of Quasi-Passive Spinal Exoskeletons. Sensors 2020, 20, 2705

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