Alex Vargas

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Caracterización y preparación de ceniza volante para su uso como recubrimientos cerámicos sobre substratos metálicos

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A neuro fuzzy control algorithm using a new extrapolation methodology

Describes a new procedure to implement a fuzzy control algorithm, based on an approach to the wel... more Describes a new procedure to implement a fuzzy control algorithm, based on an approach to the well-known “fuzzy model-reference learning control” (FMRLC) algorithm, and the use of an artificial neural net (ANN) to improve its initialization. In this approach, according to the spreading matrix (extrapolator), once the current fired rules have been adapted, the adaptation is extrapolated to their neighbors. The non-explored rules near the explored ones are then prepared to be used in the future. The final rule matrix for a given input reference to the plant (a tanker in this case) could then be considered as the desired output for this input reference. So, the whole experience gained by the control could be learned by an ANN, which may be used as an expert to give a rule base initialization to be used in later situations. Various simulations and their results are shown and compared, with and without the ANN, as an example of the performance of this algorithm

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Combinatorial Laplacian Image Cloning

Abstract Seamless image cloning has become one of the most important editing operation for photom... more Abstract Seamless image cloning has become one of the most important editing operation for photomontage. Recent coordinate-based methods have lessened considerably the computational cost of image cloning, thus enabling interactive applications. However, those techniques still bear severe limitations as to concavities and dynamic shape deformation. In this paper we present novel methodology for image cloning that turns out to be highly efficient in terms of computational times while still being more flexible than existing ...

Anatomía y Neuroanatomía, Disciplinas Perjudicadas por la Reforma Curricular

International Journal of Morphology, 2007

... Departamento de Anatomía, Escuela de Medicina, Pontificia Universidad Católica de Chile. ... ... more

Análisis del Paladar Oseo como Zona Dadora de Injerto

International Journal of Morphology, 2007

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Alex Vargas

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