Title |
Transforming the canonical piecewise-linear model into a smooth-piecewise representation
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Published in |
SpringerPlus, September 2016
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DOI | 10.1186/s40064-016-3278-y |
Pubmed ID | |
Authors |
Victor M. Jimenez-Fernandez, Maribel Jimenez-Fernandez, Hector Vazquez-Leal, Evodio Muñoz-Aguirre, Hector H. Cerecedo-Nuñez, Uriel A. Filobello-Niño, Francisco J. Castro-Gonzalez |
Abstract |
A smoothed representation (based on natural exponential and logarithmic functions) for the canonical piecewise-linear model, is presented. The result is a completely differentiable formulation that exhibits interesting properties, like preserving the parameters of the original piecewise-linear model in such a way that they can be directly inherited to the smooth model in order to determine their parameters, the capability of controlling not only the smoothness grade, but also the approximation accuracy at specific breakpoint locations, a lower or equal overshooting for high order derivatives in comparison with other approaches, and the additional advantage of being expressed in a reduced mathematical form with only two types of inverse functions (logarithmic and exponential). By numerical simulation examples, this proposal is verified and well-illustrated. |
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