TY  - JOUR
A1  - Linnemann, Gesa
A1  - Regina, Jucks
A1  - Brummernhenrich, Benjamin
T1  - Student Evaluations of a (Rude) Spoken Dialogue System Insights from an experimental study. Advances in Human–Computer Interaction
JF  - Advances in Human-Computer Interaction
N2  - Communicating with spoken dialogue systems (SDS) such as Apple’s Siri® and Google’s Now is becoming more and more common. We report a study that manipulates an SDS’s word use with regard to politeness. In an experiment, 58 young adults evaluated the spoken messages of our self-developed SDS as it replied to typical questions posed by university freshmen. The answers were either formulated politely or rudely. Dependent measures were both holistic measures of how students perceived the SDS as well as detailed evaluations of each single answer. Results show that participants not only evaluated the content of rude answers as being less appropriate and less pleasant than the polite answers, but also evaluated the rude system as less accurate. Lack of politeness also impacted aspects of the perceived trustworthiness of the SDS. We conclude that users of SDS expect such systems to be polite, and we then discuss some practical implications for designing SDS.
Y1  - 2018
U6  - http://dx.doi.org/10.1155/2018/8406187
ER  - 
TY  - JOUR
A1  - Linnemann, Gesa
A1  - Jucks, Regina
T1  - ‘Can I Trust the Spoken Dialogue System Because It Uses the Same Words as I Do?’—Influence of Lexically Aligned Spoken Dialogue Systems on Trustworthiness and User Satisfaction
JF  - Interacting with Computers
N2  - One of many ways in which spoken dialogue systems (SDS) are becoming more and more flexible is in their choice of words (e.g. alignment to the user’s vocabulary). We examined how users perceive such adaptive and non-adaptive SDS regarding trustworthiness and usability. In Experiment 1, 130 participants read out questions to an SDS that either made or did not make lexical alignment in its replies. They perceived higher cognitive demand when the SDS did not employ alignment. In Experiment 2, 135 participants listened to a conversation between a human and the same SDS in an online study. They judged the aligned SDS to have more integrity and to be more likeable. Implications for the design of SDS are discussed.
Y1  - 2018
U6  - http://dx.doi.org/10.1093/iwc/iwy005
VL  - 30
IS  - 3
SP  - 173
EP  - 186
ER  -