A matrix inference method for fuzzy systems (FITM) is used to deal with hierarchical fuzzy systems (HFSs). The contribution of this paper is twofold: on one hand, we show that a HFS (either serial or parallel) can be easily converted into a single fuzzy system, and implemented via FITM. On the other, we show that a serial HFS can be obtained out of a complicated multiple-input single-output fuzzy system. An example of such a conversion for a three-input system is included.
['Santiago Aja-Fernández', 'Carlos Alberola-López']
Hierarchical fuzzy systems with FITM