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Keep it Short: A Comparison of Voice Assistants’ Response Behavior

May 3 @ 15:15 15:30 UTC -05:00

Voice assistants (VAs) are present in homes, smartphones, and cars. They allow users to perform tasks without graphical or tactile user interfaces, as they are designed for natural language interaction. However, we found that currently, VAs are emulating human behavior by responding in complete sentences, limiting the design options, and preventing VAs from meeting their full potential as a utilitarian tool. We implemented a VA that handles requests in three response styles: two differing short keyword-based response styles and a full-sentence baseline. In a user study, 72 participants interacted with our VA by issuing eight requests. Results show that the short responses were perceived similarly useful and likable while being perceived as more efficient, especially for commands, and sometimes better to comprehend than the baseline. To achieve widespread adoption, we argue that VAs should be customizable and adapt to users instead of always responding in full sentences.

Details

Date:
May 3
Time:
15:15 – 15:30 UTC -05:00
Event Category:
Event Tags:
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Website:
https://programs.sigchi.org/chi/2022/program/content/71907

Authors

Gabriel Haas (Ulm University) and Michael Rietzler (Institute of Mediainformatics, Ulm University) and Matt Jones (Swansea University) and Enrico Rukzio (Ulm University)

Room: 290