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Cited by 2,804

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Universal approximation bounds for superpositions of a sigmoidal function

Barron, A.R.·1993·IEEE Transactions on Information Theory

Abstract

Approximation properties of a class of artificial neural networks are established. It is shown that feedforward networks with one layer of sigmoidal nonlinearities achieve integrated squared error of order O(1/n), where n is the number of nodes. The approximated function is assumed to have a bound on the first moment of the magnitude distribution of the Fourier transform. The nonlinear parameters associated with the sigmoidal nodes, as well as the parameters of linear combination, are adjusted in the approximation. In contrast, it is shown that for series expansions with n terms, in which only the parameters of linear combination are adjusted, the integrated squared approximation error cannot be made smaller than order 1/n/sup 2/d/ uniformly for functions satisfying the same smoothness assumption, where d is the dimension of the input to the function. For the class of functions examined, the approximation rate and the parsimony of the parameterization of the networks are shown to be advantageous in high-dimensional settings.>

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Metadata

Authors
Barron, A. R.
Venue
IEEE Transactions on Information Theory
Published
1993-05
Volume
39
Issue
3
Pages
930-945
ISSN
  • 0018-9448 (ISSN-L)
  • 1557-9654
OpenAlex
W2166116275
Cited by
2,804
References
3
FWCI
66.66
Type
journal article
Language
en
Open access
closed

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