Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Application of Mean Normalized Stochastic Gradient Descent for Speech Recognition
Klusáček, Jan ; Hradiš, Michal (oponent) ; Pešán, Jan (vedoucí práce)
The artificial neural networks are on the rise in recent years. One possible optimization technique is mean-normalized stochastic gradient descent recently proposes by Wiesler et al. [1]. This work further explains and examines this method on phoneme classification task. Not all findings of Wiesler et al. can be confirmed. The mean-normalized SGD is helpful only if the network is large enough (but not too deep) and if the sigmoid non-linear function is used. Otherwise, the mean-normalized SGD slightly impairs the network performance and therefore cannot be recommended as a general optimization technique. [1] Simon Wiesler, Alexander Richard, Ralf Schluter, and Hermann Ney. Mean-normalized stochastic gradient for large-scale deep learning. In Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on, pages 180{184. IEEE, 2014.
Application of Mean Normalized Stochastic Gradient Descent for Speech Recognition
Klusáček, Jan ; Hradiš, Michal (oponent) ; Pešán, Jan (vedoucí práce)
The artificial neural networks are on the rise in recent years. One possible optimization technique is mean-normalized stochastic gradient descent recently proposes by Wiesler et al. [1]. This work further explains and examines this method on phoneme classification task. Not all findings of Wiesler et al. can be confirmed. The mean-normalized SGD is helpful only if the network is large enough (but not too deep) and if the sigmoid non-linear function is used. Otherwise, the mean-normalized SGD slightly impairs the network performance and therefore cannot be recommended as a general optimization technique. [1] Simon Wiesler, Alexander Richard, Ralf Schluter, and Hermann Ney. Mean-normalized stochastic gradient for large-scale deep learning. In Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on, pages 180{184. IEEE, 2014.

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