@InProceedings{Schmidt2020_433,
<br/>   author = {Maria Schmidt and Wolfgang Minker and Steffen Werner},
<br/>   booktitle = {Studientexte zur Sprachkommunikation: Elektronische Sprachsignalverarbeitung 2020},
<br/>   title = {User Acceptance of Proactive Voice Assistant Behavior},
<br/>   year = {2020},
<br/>   editor = {Andreas Wendemuth and Ronald Böck and Ingo Siegert},
<br/>   month = mar,
<br/>   pages = {18--25},
<br/>   publisher = {TUDpress, Dresden},
<br/>   abstract  = {Using Personal Assistants (PAs) via voice becomes increasingly popular
and available in multiple environments, thus we aim to provide proactive PA
suggestions to car drivers via speech. Since these suggestions should enhance the
user experience while avoiding obtrusiveness and cognitive load, we assess these
factors in a usability study. We investigate how 42 participants perceive proactive
voice output in a Wizard-of-Oz study in a driving simulator. We varied traffic density
during a highway drive and included six in-car-specific use cases. The latter
were presented by a proactive voice assistant and in a non-proactive control condition.
We assessed the users’ subjective cognitive load in a DALI questionnaire
during the interaction with both PA variants. Additionally, the users rated their
experiences in a SASSI questionnaire. The results show that proactive assistant
behavior is rated similarly positive as non-proactive behavior. In line with previous
research, the most driving-relevant use cases receive the best ratings.},
<br/>   isbn = {978-3-959081-93-1},
<br/>   issn = {0940-6832},
<br/>   keywords = {(Speech) Assistents},
<br/>   url = {https://www.essv.de/pdf/2020_18_25.pdf},
<br/>}