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Fast inference in SAM fuzzy systems using transition matrices

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2 Author(s)
Aja-Fernandez, S. ; Lab. de Procesado de Imagen, Univ. de Valladolid, Spain ; Alberola-Lopez, C.

Fast inference using transition matrices (FITM) is a new fast algorithm for performing inferences in fuzzy systems. It is based on the assumption that fuzzy inputs can be expressed as a linear composition of the fuzzy sets used in the rule base. This representation let us interpret a fuzzy set as a vector, so we can just work with the coordinates of it instead of working with the whole set. The inference is made using transition matrices. The key of the method is the fact that a lot of operations can be precomputed offline to obtain the transition matrices, so actual inferences are reduced to a few online matrix additions and multiplications. The algorithm is designed for the standard additive model using the sum-product inference composition.

Published in:

Fuzzy Systems, IEEE Transactions on  (Volume:12 ,  Issue: 2 )

Date of Publication:

April 2004

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