Title :
Analog implementation of the SoftMax function
Author :
Zunino, Rodolfo ; Gastaldo, Paolo
Author_Institution :
DIBE, Geneva Univ., Switzerland
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;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010938
