Machine translation based data augmentation for Cantonese keyword spotting
Guangpu Huang, Arseniy Gorin, Jean-Luc Gauvain, Lori Lamel
Abstract
This paper presents a method to improve a language model for a limited-resourced language using statistical machine translation from a related language to generate data for the target language. In this work, the machine translation model is trained on a corpus of parallel Mandarin-Cantonese subtitles and used to translate a large set of Mandarin conversational telephone transcripts to Cantonese, which has limited resources. The translated transcripts are used to train a more robust language model for speech recognition and for keyword search in Cantonese conversational telephone speech. This method enables the keyword search system to detect 1.5 times more out-of-vocabulary words, and achieve 1.7% absolute improvement on actual term-weighted value.
BibTeX
@inproceedings{icassp2016_machinetranslati,
title = {Machine translation based data augmentation for Cantonese keyword spotting},
author = {Guangpu Huang and Arseniy Gorin and Jean-Luc Gauvain and Lori Lamel},
booktitle = {ICASSP 2016},
year = {2016}
}