An adaptive learning rule with limited error signals for training of multilayer perceptrons

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Although an n-th order cross-entropy (nCE) error function resolves the incorrect saturation problem of conventional error backpropagation (EBP) algorithm, performance of multilayer perceptrons (MLPs) trained using the nCE function depends heavily on the order of nCE. In this paper, we propose an adaptive learning rate to markedly reduce the sensitivity of MLP performance to the order of nCE, Additionally, we propose to limit error signal values at output nodes for stable learning with the adaptive learning rate, Through simulations of handwritten digit recognition and isolated-word recognition tasks, it was verified that the proposed method successfully reduced the performance dependency of MLPs on the nCE order while maintaining advantages of the nCE function.
Electronics Telecommunications Research Inst
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EE-Journal Papers(저널논문)
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