Paper: Word Informativeness And Automatic Pitch Accent Modeling

ACL ID W99-0619
Title Word Informativeness And Automatic Pitch Accent Modeling
Venue 2000 Joint SIGDAT Conference on Empirical Methods in Natural Language Processing and Very Large Corpora
Session Main Conference
Year 1999
Authors

In intonational phonology and speech syn- thesis research, it has been suggested that the relative informativeness of a word can be used to predict pitch prominence. The more information conveyed by a word, the more likely it will be accented. But there are oth- ers who express doubts about such a correla- tion. In this paper, we provide some empiri- cal evidence to support the existence of such a correlation by employing two widely ac- cepted measures of informativeness. Our ex- periments show that there is a positive corre- lation between the informativeness of a word and its pitch accent assignment. They also show that informativeness enables statisti- cally significant improvements in pitch ac- cent prediction. The computation of word informativeness is inexpensive and can be incorpora...