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Fuzzy sets in distributed traffic control
(1996-12-01)
The task of controlling urban traffic requires flexibility, adaptability and handling uncertain information spread through the intersection network. The use of fuzzy sets concepts convey these characteristics to improve ...
On relaxed LMI-based design for fuzzy controllers
(IEEE, 2001-01-01)
Relaxed conditions for stability of nonlinear continuous-time systems given by fuzzy models axe presented. A theoretical analysis shows that the proposed method provides better or at least the same results of the methods ...
On relaxed LMI-based design for fuzzy controllers
(2001-12-01)
Relaxed conditions for stability of nonlinear continuous-time systems given by fuzzy models are presented. A theoretical analysis shows that the proposed method provides better or at least the same results of the methods ...
Modeling fuzzy topological predicates for fuzzy regions
(ACM Special Interest Group on Spatial Information - ACM SIGSPATIALDallas, 2014-11)
Spatial database systems and Geographical Information Systems (GIS) are currently only able to handle crisp spatial objects, i.e., objects whose extent, shape, and boundary are precisely determined. However, GIS applications ...
Numerical Solution for Reversible Chemical Reaction Models with Interactive Fuzzy Initial Conditions
(Springer, 2022-01-01)
This manuscript studies the reversible chemical reactions described by a system of fuzzy differential equations, with initial conditions given by interactive fuzzy numbers. The fuzzy solution is given by the Euler method ...
On relaxed LMI-based designs for fuzzy regulators and fuzzy observers
(2001-01-01)
Relaxed conditions for the stability study of nonlinear, continuous systems given by fuzzy models are presented. A theoretical analysis shows that the proposed method provides better or at least the same results of the ...
A comparative study between two relaxed LMI-based fuzzy control designs
(2005-09-01)
A comparative study, with theoretical analysis and digital simulations, of two conditions based on LMI for the quadratic stability of nonlinear continuous-time dynamic systems, described by Takagi-Sugeno fuzzy models, are ...
Comparison Between Numerical Solutions of Fuzzy Partial Differential Equations via Interactive and Non-interactive Arithmetics: Application to the Heat Equation
(2022-01-01)
This paper provides a new numerical solution to partial differential equations, where the initial and boundary conditions are given by interactive fuzzy numbers. The interactivity considered here is the one obtained from ...
Efficient parametric adjustment of fuzzy inference system using unconstrained optimization
(2007-12-01)
This paper presents a new methodology for the adjustment of fuzzy inference systems, which uses technique based on error back-propagation method. The free parameters of the fuzzy inference system, such as its intrinsic ...
Case-based system: Indexing and retrieval with fuzzy hypercube
(2001-12-01)
In some applications with case-based system, the attributes available for indexing are better described as linguistic variables instead of receiving numerical treatment. In these applications, the concept of fuzzy hypercube ...