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Evolution of Voronoi based Fuzzy Recurrent Controllers

Carlos Kavka 1, 2 Patricia Roggero 2 Marc Schoenauer 1 
1 TANC - Algorithmic number theory for cryptology
LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau], Inria Saclay - Ile de France
Abstract : A fuzzy controller is usually designed by formulating the knowledge of a human expert into a set of linguistic variables and fuzzy rules. Among the most successful methods to automate the fuzzy controllers development process are evolutionary algorithms. In this work, we propose the Recurrent Fuzzy Voronoi (RFV) model, a representation for recurrent fuzzy systems. It is an extension of the FV model proposed by Kavka and Schoenauer that extends the application domain to include temporal problems. The FV model is a representation for fuzzy controllers based on Voronoi diagrams that can represent fuzzy systems with synergistic rules, fulfilling the $\epsilon$-completeness property and providing a simple way to introduce a priory knowledge. In the proposed representation, the temporal relations are embedded by including internal units that provide feedback by connecting outputs to inputs. These internal units act as memory elements. In the RFV model, the semantic of the internal units can be specified together with the a priori rules. The geometric interpretation of the rules allows the use of geometric variational operators during the evolution. The representation and the algorithms are validated in two problems in the area of system identification and evolutionary robotics.
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Submitted on : Saturday, November 26, 2005 - 9:57:49 AM
Last modification on : Friday, February 4, 2022 - 3:24:44 AM
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Carlos Kavka, Patricia Roggero, Marc Schoenauer. Evolution of Voronoi based Fuzzy Recurrent Controllers. GECCO 2005, ACM-SIGEVO, Jun 2005, Washington DC, USA. ⟨inria-00000539⟩



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