华东师范大学学报(自然科学版) ›› 2014, Vol. 2014 ›› Issue (1): 60-67.

• 计算机科学 • 上一篇    下一篇

基于深层神经网络（DNN）的汉语方言种属语音识别

景亚鹏, 郑 骏, 胡文心   

  1. 华东师范大学 计算中心，上海 200062
  • 收稿日期:2013-03-01 修回日期:2013-06-01 出版日期:2014-01-25 发布日期:2015-09-25

Belongingness of Chinese dialect speech recognition based on deep neural network

JING Ya-peng, ZHENG Jun, HU Wen-xin   

  1. Computing Center, East China Normal University, Shanghai 200062, China
  • Received:2013-03-01 Revised:2013-06-01 Online:2014-01-25 Published:2015-09-25

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摘要： 将深层神经网络（Deep Neural Network）应用于汉语方言种属语音识别.基于优化的QuickNet软件，为方言识别实现了一种有监督的DNN逐层预训练方法.在训练时，从3层开始逐层做有监督的神经网络训练，每增长一层的初始权值包含前一层训练好的部分权值和输出端的随机权值.在得到最大层的初始权值后，再进行传统的BP网络训练.该方法和普通神经网络相比识别率有较大提升，可用于移动互联网标准语音识别入口、方言口音鉴识等领域.

关键词: 深层神经网络, 方言语音识别, QuickNet

Abstract: Based on the modified QuickNet software, we proposed a supervised DNN layerwise pre-training method for dialect speech recognition. The pre-training will start from a 3-layer neural network till the maximum layer, during which we will do supervised training. The initial weights of a new layer are composed of the partial trained weights of lower level network and the randomized weights closed to the output layer. Then we will do traditional back-propagation training when the initial weights of the maximum layer network are obtained. This method achieved a relatively higher recognition rate compared with normal neural network training and can be used in mobile speech recognition apps, the recognition of dialects speech and so on.

Key words: deep neural network, dialects speech recognition, QuickNet

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