Technical Program

Paper Detail

Paper:	SLP-P18.8
Session:	LVCSR Systems
Time:	Friday, May 19, 10:00 - 12:00
Presentation:	Poster
Topic:	Speech and Spoken Language Processing: Multilingual Speech recognition
Title:	SPEECH RECOGNITION ON CODE-SWITCHING AMONG THE CHINESE DIALECTS
Authors:	Dau-cheng Lyu, Academia Sinica, Taiwan; Ren-yuan Lyu, Chang Gung University, Taiwan; Yuang-chin Chiang, National Tsing Hua University, Taiwan; Chun-nan Hsu, Academia Sinica, Taiwan
Abstract:	We propose an integrated approach to do automatic speech recognition on code-switching utterances, where speakers switch back and forth between at least 2 languages. This one-pass framework avoids the degradation of accuracy due to the imperfectly intermediate decisions of language detection and language identification. It is based on a three-layer recognition scheme, which consists of a mixed-language HMM-based acoustic model, a knowledge-based plus data-driven probabilistic pronunciation model, and a tree-structured searching net. The traditional multi-pass recognizer including language boundary detection, language identification and language-dependent speech recognition is also implemented for comparison. Experimental results show that the proposed approach, with a much simpler recognition scheme, could achieve as high accuracy as that could be achieved by using the traditional approach.