Training deep neural network for acoustic modeling in speech recognition
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United States of America Patent
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Dec 12, 2017
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app pub date -
Jun 26, 2015
filing date -
Jun 26, 2015
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Abstract
A method is provided for training a Deep Neural Network (DNN) for acoustic modeling in speech recognition. The method includes reading central frames and side frames as input frames from a memory. The side frames are preceding side frames preceding the central frames and/or succeeding side frames succeeding the central frames. The method further includes executing pre-training for only the central frames or both the central frames and the side frames and fine-tuning for the central frames and the side frames so as to emphasize connections between acoustic features in the central frames and units of the bottom layer in hidden layer of the DNN.
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