ISCA Archive ICSLP 2002
ISCA Archive ICSLP 2002

Combination of pause and F0 information in dependency analysis of Japanese sentences

Kazuyuki Takagi, Hajime Kubota, Kazuhiko Ozeki

This paper focuses on syntactic information contained in prosodic features extracted from read Japanese sentences, and describes a method of exploiting it in dependency structure analysis. The basic idea is to make a statistical model of prosodic feature distribution for each dependency distance. Then, by using the Bayes theorem, the dependency distance of each phrase is predicted from a given feature value. A multi-dimensional feature of F0 was effective to improve parsing accuracy, which was sampled from the parabola fitted to the log-F0 contour. It was also shown that the performance was improved more by linearly combining post-phrase pause duration information with the F0 information.