Cmac and Its Extensions for Efficient System Modelling

• Autorzy: Szabo T. , Horvath G.
• Języki publikacji: EN

Abstrakty

EN

This paper deals with the family of CMAC neural networks. The most important properties of this family are the extremely fast learning capability and a special architecture that makes effective digital hardware implementation possible. The paper gives an overview of the classical binary CMAC, shows the limitations of its modelling capability, gives a critical survey of its different extensions and suggests two further modifications. The aim of these modifications is to improve the modelling capability while maintaining the possibility of an effective realization. The basic element of the first suggested hardware structure is a new matrix-vector multiplier which is based on a canonical signed digit (CSD) number representation and a distributed arithmetic. In the other version, a hierarchical network structure and a special sequential training method are proposed which can constitute a trade-off between the approximation error and generalization. The proposed versions (among them a dynamic extension of the originally static CMAC) are suitable for embedded applications where the low cost and relatively high speed operation are the most important requirements.

Słowa kluczowe

EN

CMAC; neural networks; hardware implementation

PL

sieć neuronowa; implementacja sprzętowa; budowle hydrotechniczne

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 1999
• Tom: Vol. 9, no 3
• Strony: 571--598
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Szabo T.

autor

Horvath G.

• Department of Measurement and InformationSystems Technical University of Budapest Muegyetem rkp. 9, Budapest, Hungary, H-1521,