Analog implementation of the SoftMax function

Author

Zunino, Rodolfo ; Gastaldo, Paolo

Author_Institution

DIBE, Geneva Univ., Switzerland

Volume

2

fYear

2002

fDate

2002

Abstract

The paper describes the analog implementation of the SoftMax function by using CMOS circuitry. First, an optimization-based strategy is presented, which fits technology requirements to the desired accuracy in the SoftMax-mapping. Then circuit solutions are described to both the approximation of the exp(x) function and the normalizing ratio. These optimized design aspects improve overall effectiveness, reduce VLSI complexity by exploiting inherent parallelism, and ultimately limit overall power consumption

Keywords

CMOS analogue integrated circuits; analogue processing circuits; circuit optimisation; current-mode circuits; function approximation; integrated circuit design; CMOS analog implementation; SoftMax function; VLSI complexity; circuit solutions; current-mode CMOS circuit; exp(x) function approximation; inherent parallelism; nonlinear signal processing; normalizing ratio; optimization-based strategy; optimized design aspects; power consumption; technology requirements; Circuits; Complexity theory; Costs; Design optimization; Energy consumption; Hardware; Polynomials; Samarium; Transfer functions; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on

Conference_Location

Phoenix-Scottsdale, AZ

Print_ISBN

0-7803-7448-7

Type

conf

DOI

10.1109/ISCAS.2002.1010938

Filename

1010938