Esta Tesis se centra principalmente en la búsqueda y desarrollo de nuevas técnicas de simplificación para sistemas neuro-difusos, de modo que sistemas complejos puedan ser ejecutados de forma eficiente en software empotrado o hardware dedicado. Los algoritmos de extracción de reglas de tipo rejilla (grid) a partir de datos numéricos pueden dar...
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November 5, 2015 (v1)PublicationUploaded on: December 4, 2022
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March 16, 2017 (v1)Publication
This paper describes a methodology to extract fuzzy models that describe linguistically the low-level features of an image (such as color, texture, etc.). The methodology combines grid-based algorithms with clustering and tabular simplification methods to compress image information into a small number of fuzzy rules with high linguistic...
Uploaded on: December 5, 2022 -
March 24, 2017 (v1)Publication
Fuzzy models, traditionally used in the control field to model controllers or plants behavior, are used in this work to describe fingerprint images. The textures, in this case the directions of the fingerprint ridges, are described for the whole image by fuzzy if-then rules whose antecedents consider a part of the image and the consequent is...
Uploaded on: December 4, 2022 -
March 23, 2017 (v1)Publication
Este artículo presenta una técnica basada en la lógica difusa para extraer bases de reglas a partir de datos numéricos. Permite obtener bases de reglas interpretables lingüísticamente a la vez que simples en cuanto a número de reglas, sencillez en las partes antecedentes y consecuentes y facilidad de implementación hardware/software. Los pasos...
Uploaded on: December 4, 2022 -
March 24, 2017 (v1)Publication
This paper describes how the different CAD tools of the environment Xfuzzy 3, developed in Microelectronics Institute of Seville and University of Seville, allow to translate expressive linguistic models into mathematical ones, in particular, into a combination of piecewise polynomial systems that can be implemented efficiently in hardware. The...
Uploaded on: March 25, 2023 -
March 21, 2017 (v1)Publication
En esta comunicación se describe un sistema de control difuso para aplicaciones de navegación de robots móviles autónomos en presencia de obstáculos fijos. Las herramientas de CAD del entorno Xfuzzy 3, desarrollado en el IMSE, han facilitado el diseño del controlador. En la comunicación se procede a la verificación del controlador diseñado...
Uploaded on: March 27, 2023 -
March 28, 2017 (v1)Publication
En esta comunicación se describe el diseño de controladores basados en lógica difusa como módulos de Propiedad Intelectual (IP) compatibles con los sistemas de procesado disponibles en las familias de FPGAs de Xilinx. El trabajo fue propuesto como caso práctico de un curso de postgrado de diseño de sistemas empotrados sobre FPGAs. Su...
Uploaded on: March 27, 2023 -
March 29, 2017 (v1)Publication
This paper proposes the design of hierarchical piecewise-affine (PWA) controllers to alleviate the processing time or prohibitive memory requirements of large controller structures. The constituent PWA modules of the hierarchical solution have fewer inputs and/or coarser partitions, so that they can reduce considerably the hardware resources...
Uploaded on: March 27, 2023 -
March 23, 2017 (v1)Publication
Since 1992, Xfuzzy environment has been improving to ease the design of fuzzy systems. The current version, Xfuzzy 3, which is entirely programmed in Java, includes a wide set of new featured tools that allow automating the whole design process of a fuzzy logic based system: from its description (in the XFL3 language) to its synthesis in C, C++...
Uploaded on: December 5, 2022 -
March 23, 2017 (v1)Publication
The characteristics of the new version of the fuzzy systems development environment Xfuzzy is presented. The environment covers the aspects related to the specification, verification, adjustment and implementation of fuzzy systems. It is an open environment (in the sense that the user can define many functional and structural aspects) and a...
Uploaded on: March 27, 2023