Confidence in uncertainty. Error cost and commitment in early speech hypotheses

Loth S, Jettka K, Giuliani M, Kopp S, de Ruiter J (2018)
PLoS ONE 13(8): e0201516.

Download
OA 14.38 MB
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Volltext vorhanden für diesen Nachweis
Autor
; ; ; ;
Abstract / Bemerkung
Interactions with artificial agents often lack immediacy because agents respond slower than their users expect. Automatic speech recognisers introduce this delay by analysing a user’s utterance only after it has been completed. Early, uncertain hypotheses of incremental speech recognisers can enable artificial agents to respond more timely. However, these hypotheses may change significantly with each update. Therefore, an already initiated action may turn into an error and invoke error cost. We investigated whether humans would use uncertain hypotheses for planning ahead and/or initiating their response. We designed a Ghost-in-the-Machine study in a bar scenario. A human participant controlled a bartending robot and perceived the scene only through its recognisers. The results showed that participants used uncertain hypotheses for selecting the best matching action. This is comparable to computing the utility of dialogue moves. Participants evaluated the available evidence and the error cost of their actions prior to initiating them. If the error cost was low, the participants initiated their response with only suggestive evidence. Otherwise, they waited for additional, more confident hypotheses if they still had time to do so. If there was time pressure but only little evidence, participants grounded their understanding with echo questions. These findings contribute to a psychologically plausible policy for human-robot interaction that enables artificial agents to respond more timely and socially appropriately under uncertainty.
Erscheinungsjahr
Zeitschriftentitel
PLoS ONE
Band
13
Ausgabe
8
Art.-Nr.
e0201516
eISSN
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
PUB-ID

Zitieren

Loth S, Jettka K, Giuliani M, Kopp S, de Ruiter J. Confidence in uncertainty. Error cost and commitment in early speech hypotheses. PLoS ONE. 2018;13(8): e0201516.
Loth, S., Jettka, K., Giuliani, M., Kopp, S., & de Ruiter, J. (2018). Confidence in uncertainty. Error cost and commitment in early speech hypotheses. PLoS ONE, 13(8), e0201516. doi:10.1371/journal.pone.0201516
Loth, S., Jettka, K., Giuliani, M., Kopp, S., and de Ruiter, J. (2018). Confidence in uncertainty. Error cost and commitment in early speech hypotheses. PLoS ONE 13:e0201516.
Loth, S., et al., 2018. Confidence in uncertainty. Error cost and commitment in early speech hypotheses. PLoS ONE, 13(8): e0201516.
S. Loth, et al., “Confidence in uncertainty. Error cost and commitment in early speech hypotheses”, PLoS ONE, vol. 13, 2018, : e0201516.
Loth, S., Jettka, K., Giuliani, M., Kopp, S., de Ruiter, J.: Confidence in uncertainty. Error cost and commitment in early speech hypotheses. PLoS ONE. 13, : e0201516 (2018).
Loth, Sebastian, Jettka, Katharina, Giuliani, Manuel, Kopp, Stefan, and de Ruiter, Jan. “Confidence in uncertainty. Error cost and commitment in early speech hypotheses”. PLoS ONE 13.8 (2018): e0201516.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Creative Commons Namensnennung 4.0 International Public License (CC-BY 4.0):
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2018-08-23T06:37:02Z

Link(s) zu Volltext(en)
Access Level
OA Open Access

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Suchen in

Google Scholar