MultiQT: Multimodal learning for real-time question tracking in speech

Jakob D. Havtorn, Jan Latko, Joakim Edin, Lars Maaløe, Lasse Borgholt, Lorenzo Belgrano, Nicolai Jacobsen, Regitze Sdun, Željko Agić


Abstract
We address a challenging and practical task of labeling questions in speech in real time during telephone calls to emergency medical services in English, which embeds within a broader decision support system for emergency call-takers. We propose a novel multimodal approach to real-time sequence labeling in speech. Our model treats speech and its own textual representation as two separate modalities or views, as it jointly learns from streamed audio and its noisy transcription into text via automatic speech recognition. Our results show significant gains of jointly learning from the two modalities when compared to text or audio only, under adverse noise and limited volume of training data. The results generalize to medical symptoms detection where we observe a similar pattern of improvements with multimodal learning.
Anthology ID:
2020.acl-main.215
Volume:
Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics
Month:
July
Year:
2020
Address:
Online
Editors:
Dan Jurafsky, Joyce Chai, Natalie Schluter, Joel Tetreault
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2370–2380
Language:
URL:
https://aclanthology.org/2020.acl-main.215
DOI:
10.18653/v1/2020.acl-main.215
Bibkey:
Cite (ACL):
Jakob D. Havtorn, Jan Latko, Joakim Edin, Lars Maaløe, Lasse Borgholt, Lorenzo Belgrano, Nicolai Jacobsen, Regitze Sdun, and Željko Agić. 2020. MultiQT: Multimodal learning for real-time question tracking in speech. In Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics, pages 2370–2380, Online. Association for Computational Linguistics.
Cite (Informal):
MultiQT: Multimodal learning for real-time question tracking in speech (D. Havtorn et al., ACL 2020)
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PDF:
https://aclanthology.org/2020.acl-main.215.pdf
Video:
 http://slideslive.com/38929009