Applying Repair Processing in Chinese Homophone Disambiguation.pdf

Applying Repair Processing in Chinese Homophone Disambiguation Y u e - S h i L e e a n d H s i n - H s i C h e n D e p a r t m e n t o f C o m p u t e r S c i en ce and I n f o r m a t i o n E n g i n e e r i n g Na t i o n a l T a i w a n U n iv e r s i t y Ta ipe i , Ta iwan , R .O.C. E-Mai l : { leeys , h h _ c h e n } @ c s i e . n t u . e d u . t w A b s t r a c t Repair processing plays an important role in spoken language processing systems. This paper proposes a method for correcting Chinese repetition repairs and demonstrates the effects of repair processing in Chinese homophone disambiguation. The experimental results show that the precision rate of 93.87% and the recall rate of 90?65% can be achieved for the repair processing. At the same time, 50% of errors in the repairing segments can be reduced for Chinese homophone disambiguation. 1 Introduction Repair is a very common phenomenon in spoken languages. Speakers usually repeat, add, replace, or even abandon some constructions in the utterances for some mental reasons. Typical repairs in Chinese spoken data are shown in (1) and (2). (i) ? ..~2 ~ ~ t~ ~ % - - I drink wine too SHI . . sometimes SHI ...(1.3)~__ ^;~-- not too . .~F~ ~$fJ ~ . \ not too constrain-oneself particle (I am sometimes addicted to drinking.) The transcription system proposed by Bois, et al. (1992) is used to transcribe the spoken data. The three symbols ...(N) . . . . and .. denote an unfilled pause (silence) is long, medium and short, respectively. The symbol % denotes the glottal stop. (2) because eye ? .1~1~ - - N. \ eye once close (Because eye .. Once (you) close your eyes . . . . ) Heeman and Allen (1994) describe that 25% of turns contain at least one speech repair in their corpus. In our study, 17% of turns contain at least one speech repair? Thus, the repair processing cannot be negligible and has influences to a certain extent. Recently, text-fir