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Tagungsband MuC 2022

https://dl.gi.de/handle/20.500.12116/38890
Auflistung nach:

Auflistung Tagungsband MuC 2022 nach Autor:in "Alt, Florian"

1 - 2 von 2
  • Konferenzbeitrag
    Alexa, It’s Me! An Online Survey on the User Experience of Smart Speaker Authentication
    (Mensch und Computer 2022 - Tagungsband, 2022) Renz, Andreas; Baldauf, Matthias; Maier, Edith; Alt, Florian
    Verifying the identify of the speaker is a crucial requirement for security-critical voice-based services on smart speakers, such as transferring money or making online purchases. Whilst various studies have explored novel authentication mechanisms for voice based services, there is little research on the user experience of respective authentication methods. To address this gap, we conducted a comprehensive online survey (n=696). We compared five authentication methods (spoken PIN, biometrics, app with button/voice confirmation, card reader) regarding their perceived efficiency, security, ease of use, and error susceptibility. Additionally, we investigated users’ willingness to use security-critical services in banking and government. We found an overall preference to confirm actions triggered by voice by pressing a button on a mobile authentication app followed by PIN-based authentication. In contrast, biometric authentication by voice is considered unreliable, while applying a card reader is regarded secure, yet less convenient.
  • Konferenzbeitrag
    Enthusiasts, Pragmatists, and Skeptics: Investigating Users’ Attitudes Towards Emotion- and Personality-Aware Voice Assistants across Cultures
    (Mensch und Computer 2022 - Tagungsband, 2022) Ma, Yong; Abdelrahman, Yomna; Drewes, Heiko; Petz, Barbarella; Alt, Florian; Hussmann, Heinrich; Butz, Andreas
    Voice Assistants (VAs) are becoming a regular part of our daily life. They are embedded in our smartphones or smart home devices. Just as natural language processing has improved the conversation with VAs, ongoing work in speech emotion recognition also suggests that VAs will soon become emotion- and personality-aware. However, the social implications, ethical borders and the users’ general attitude towards such VAs remain underexplored. In this paper, we investigate users’ attitudes towards and preferences for emotionally aware VAs in three different cultures. We conducted an online questionnaire with N = 364 participants in Germany, China, and Egypt to identify differences and similarities in attitudes. Using a cluster analysis, we identified three different basic user types (Enthusiasts, Pragmatists, and Skeptics), which exist in all cultures. We contribute characteristic properties of these user types and highlight how future VAs should support customizable interactions to enhance user experience across cultures.