Dr. Linjia Sun Profile

Dr. Linjia Sun

at Beijing Language and Culture Univ

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Proceedings Article | 27 November 2019 Paper

Chinese dialect identification using prosodic classes and enhanced bigram model

Linjia Sun

Proceedings Volume 11321, 113212J (2019) https://doi.org/10.1117/12.2539084

KEYWORDS: Statistical modeling, Acoustics, Data modeling, Databases, Signal processing

Read Abstract +

A method based on prosodic classes is proposed for Chinese dialect identification in this paper. The prosodic classes are obtained from a large number of prosodic words which are the basic unit of the prosodic structure, and simultaneously include acoustic, phonotactic and prosodic feature to classify dialects. In addition, the pauses between prosodic words also are considered and described as a special prosodic class. The different between the Chinese dialects is distinguished by the prosodic classes and their order in the whole sentences. The enhanced bigram model (EBM) based on HMM technique is proposed to obtain the sequential statistics of sequences of prosodic classes, which is shown to yields better identification performance and outperform the universal HMM model. We implement the new method to illustrate the capability of identification and evaluate it on the corpus from the Project for the Protection of Language Resources of China. The experimental results show that our method provides competitive performance with the existing methods.

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