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Convention Paper

Pruning Algorithms for Multilayer Perceptrons Tailored for Speech/Non-Speech Classification in Digital Hearing Aids

Authors: Álvarez, Lorena; Alexandre, Enrique; Rosa-Zurera, Manuel

AES Convention 126 · Paper 7736 · May 2009

Abstract

This paper explores the feasibility of using different pruning algorithms for multilayer perceptrons (MLPs) applied to the problem of speech/non-speech classification in digital hearing aids. A classifier based on MLPs is considered the best option in spite of its presumably high computational cost. Nevertheless, its implementation has been proven to be feasible: it requires some trade-offs involving a balance between reducing the computational demands (that is, the number of neurons) and the quality perceived by the user. In this respect, this paper will focus on the design of three novel pruning algorithms for MLPs, which attempt to converge to the minimum complexity network (that is, the lowest number of neurons in the hidden layer) without degrading the performance of it. The results obtained with the proposed algorithms will be compared with those obtained when using another pruning algorithm proposed in the literature.

Details

Published in
AES Convention 126
AES Convention
126
Paper number
7736
Publication date
May 6, 2009
Session subject
Hearing
Affiliation
University of Alcalá, Alcalá de Henares, Spain (See document for exact affiliation information.)
Type
Convention Paper