A fuzzy logic approach to robust cost functions in adaptive systems

Authors:
Emilio Soria;José D. Martín;Antonio J. Serrano;Rafael Magdalena;Marcelino Martínez
Affiliations:
Departamento de Ingeniería Electrónica, E.T.S.E, Universidad de Valencia, Spain;Departamento de Ingeniería Electrónica, E.T.S.E, Universidad de Valencia, Spain;Departamento de Ingeniería Electrónica, E.T.S.E, Universidad de Valencia, Spain;Departamento de Ingeniería Electrónica, E.T.S.E, Universidad de Valencia, Spain;Departamento de Ingeniería Electrónica, E.T.S.E, Universidad de Valencia, Spain
Venue:
ACS'07 Proceedings of the 7th Conference on 7th WSEAS International Conference on Applied Computer Science - Volume 7
Year:
2007

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Abstract

This paper presents a fuzzy logic approach to combine cost functions in adaptive systems. The proposed approach is based on the application of a "soft" threshold to switch between two different cost functions. A generic analysis is carried out, being the Huber's function studied as a particular case. A channel equalization problem is used in order to benchmark the results achieved by the different cost functions.