A Comparative Analysis of Crowdsourced Natural Language Corpora for Spoken Dialog Systems

Patricia Braunger, Hansjörg Hofmann, Steffen Werner, Maria Schmidt

Abstract
Recent spoken dialog systems have been able to recognize freely spoken user input in restricted domains thanks to statistical methods in the automatic speech recognition. These methods require a high number of natural language utterances to train the speech recognition engine and to assess the quality of the system. Since human speech offers many variants associated with a single intent, a high number of user utterances have to be elicited. Developers are therefore turning to crowdsourcing to collect this data. This paper compares three different methods to elicit multiple utterances for given semantics via crowd sourcing, namely with pictures, with text and with semantic entities. Specifically, we compare the methods with regard to the number of valid data and linguistic variance, whereby a quantitative and qualitative approach is proposed. In our study, the method with text led to a high variance in the utterances and a relatively low rate of invalid data.
Anthology ID:
L16-1119
Volume:
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)
Month:
May
Year:
2016
Address:
Portorož, Slovenia
Editors:
Nicoletta Calzolari, Khalid Choukri, Thierry Declerck, Sara Goggi, Marko Grobelnik, Bente Maegaard, Joseph Mariani, Helene Mazo, Asuncion Moreno, Jan Odijk, Stelios Piperidis
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
750–755
Language:
URL:
https://aclanthology.org/L16-1119
DOI:
Bibkey:
Cite (ACL):
Patricia Braunger, Hansjörg Hofmann, Steffen Werner, and Maria Schmidt. 2016. A Comparative Analysis of Crowdsourced Natural Language Corpora for Spoken Dialog Systems. In Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16), pages 750–755, Portorož, Slovenia. European Language Resources Association (ELRA).
Cite (Informal):
A Comparative Analysis of Crowdsourced Natural Language Corpora for Spoken Dialog Systems (Braunger et al., LREC 2016)
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PDF:
https://preview.aclanthology.org/naacl24-info/L16-1119.pdf
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