Mongolian speech recognition based on deep neural networks

Abstract

Mongolian is an influential language. And better Mongolian Large Vocabulary Continuous Speech Recognition (LVCSR) systems are required. Recently, the research of speech recognition has achieved a big improvement by introducing the Deep Neural Networks (DNNs). In this study, a DNN-based Mongolian LVCSR system is built. Experimental results show that the DNN-based models outperform the conventional models which based on Gaussian Mixture Models (GMMs) for the Mongolian speech recognition, by a large margin. Compared with the best GMM-based model, the DNN-based one obtains a relative improvement over 50%. And it becomes a new state-of-the-art system in this field.