Paper: Sentence-Internal Prosody Does Not Help Parsing The Way Punctuation Does

ACL ID N04-1011
Title Sentence-Internal Prosody Does Not Help Parsing The Way Punctuation Does
Venue Human Language Technologies
Session Main Conference
Year 2004
Authors

This paper investigates the usefulness of sentence-internal prosodic cues in syntac- tic parsing of transcribed speech. Intu- itively, prosodic cues would seem to pro- vide much the same information in speech as punctuation does in text, so we tried to incorporate them into our parser in much the same way as punctuation is. We com- pared the accuracy of a statistical parser on the LDC Switchboard treebank corpus of transcribed sentence-segmented speech using various combinations of punctua- tion and sentence-internal prosodic infor- mation (duration, pausing, and f0 cues). With no prosodic or punctuation informa- tion the parser’s accuracy (as measured by F-score) is 86.9%, and adding punctuation increases its F-score to 88.2%. However, all of the ways we have tried of adding prosodic in...