| COMPUTER SCIENCE AND TECHNOLOGY |
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Crosslingual acoustic modeling in Uyghur speech recognition |
| NURMEMET Yolwas1, LIU Junhua2, WUSHOUR Silamu1, REYIMAN Tursun1, DAWEL Abilhayer1 |
1. College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China;
2. iFLYTEK Co., Ltd., Hefei 230088, China |
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Abstract The Uyghur language has a little speech data for training acoustic models due to various data acquisition and annotation difficulties. This paper describes a modeling method for crosslingual acoustic models based on long short-term memory models. Mass Chinese language training data is used to train a deep neural network acoustic model. The network output layer weights are then randomly modified to create the output layer for the Uyghur language. A Uyghur language acoustic model is then trained using Uyghur language speech data to update all the weights. Tests show that this method reduces the word error rates of the Uyghur language transcription and dictation recognition by 20% and 30% than the baseline system. Thus, this method improves the Uyghur language acoustic model with better initial weights from the Chinese language data to train hidden layers in the neural network, and enhances the network robustness.
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| Keywords
acoustic model
Uyghur
crosslingual
long short-term memory
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Issue Date: 15 April 2018
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2018,
Vol. 58
