Very short utterances in conversation
2010 (English)In: Proceedings from Fonetik 2010, Lund, June 2-4, 2010 / [ed] Susanne Schötz, Gilbert Ambrazaitis, Lund, Sweden: Lund University , 2010, 11-16 p.Conference paper (Other academic)
Faced with the difficulties of finding an operationalized definition of backchannels, we have previously proposed an intermediate, auxiliary unit – the very short utterance (VSU) – which is defined operationally and is automatically extractable from recorded or ongoing dialogues. Here, we extend that work in the following ways: (1) we test the extent to which the VSU/NONVSU distinction corresponds to backchannels/non-backchannels in a different data set that is manually annotated for backchannels – the Columbia Games Corpus; (2) we examine to the extent to which VSUS capture other short utterances with a vocabulary similar to backchannels; (3) we propose a VSU method for better managing turn-taking and barge-ins in spoken dialogue systems based on detection of backchannels; and (4) we attempt to detect backchannels with better precision by training a backchannel classifier using durations and inter-speaker relative loudness differences as features. The results show that VSUS indeed capture a large proportion of backchannels – large enough that VSUs can be used to improve spoken dialogue system turntaking; and that building a reliable backchannel classifier working in real time is feasible.
Place, publisher, year, edition, pages
Lund, Sweden: Lund University , 2010. 11-16 p.
, Working papers / Lund University, Department of Linguistics and Phonetics, ISSN 0280-526X ; 54
Computer Science Language Technology (Computational Linguistics)
IdentifiersURN: urn:nbn:se:kth:diva-52146OAI: oai:DiVA.org:kth-52146DiVA: diva2:465441
Fonetik 2010, Lund, 2-4 juni 2010
tmh_import_11_12_14. QC 201201052011-12-142011-12-142012-01-05Bibliographically approved