Title :
Accuracy vs. precision in general purpose neural digital VLSI architectures
Author :
Alippi, Cesare ; Briozzo, Luciano
Author_Institution :
Politecnico di Milano, Italy
Abstract :
The paper provides a sensitivity analysis to measure the loss in accuracy induced by perturbations affecting multilayered perceptrons. Differing from that suggested in the related literature, we do not assume a large number of weights or independence among inputs for the neurons nor again strict requirements on the nonlinear function. Results are then tailored to digital VLSI implementations where perturbations, caused by quantisation, affect the device inputs, weights, internal values and outputs
Keywords :
VLSI; multilayer perceptrons; neural chips; quantisation (signal); sensitivity analysis; device inputs; device outputs; internal values; multilayered perceptrons; neural digital VLSI architectures; nonlinear function; perturbations; precision; quantisation; sensitivity analysis; weights; Covariance matrix; Loss measurement; Neurons; Parameter estimation; Performance loss; Random variables; Stochastic resonance; Taylor series; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.703916
