International Symposium on Chinese Spoken Language Processing
August 23-24, 2002
Large lexicon construction for TTS system
Ben-Feng Chen, Guo-Ping Hu, Ren-Hua Wang
University of Science & Technology of China, Hefei, China
Lexicon is an essential part of Chinese Information Processing.
In particular, compared with the basic lexicon, a large and perfect
lexicon can effectively reduce the complexity and improve the
precision of text parsing in TTS System. However, this special
lexicon is hard to be constructed by either handwork or computer.
This paper presents an approach to construct a large lexicon
combining computer assistance and handwork, including the
lexicon-iteration method of generating a large lexicon,
and the lexicon-words selection that helps to improve the
system. Based on this approach, we have constructed a large
lexicon containing vocabularies about 200,000. And the
experiments show that this large lexicon improves the
efficiency of our system by 22.9% and the precision of word
segmentation result by 19.0%.
Chen, Ben-Feng / Hu, Guo-Ping / Wang, Ren-Hua (2002):
"Large lexicon construction for TTS system",
In ISCSLP 2002, paper 55.