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Auflistung nach Schlagwort "voice assistant"

1 - 3 von 3
  • Zeitschriftenartikel
    Authentication methods for voice services on smart speakers – a multi-method study on perceived security and ease of use
    (i-com: Vol. 22, No. 1, 2023) Renz, Andreas; Neff, Thomas; Baldauf, Matthias; Maier, Edith
    With the increasing proliferation of security-critical voice-based services such as voice banking, user authentication on smart speakers is becoming a vital requirement. Prior research on verifying the speaker’s identity has been taken a technical perspective predominantly, while respective user-centered research is scarce. To investigate authentication methods for smart speakers from a user’s perspective, we conducted a multi-method experiment. In a comprehensive online survey (n = 696) and a comparative lab study (n = 18) with an advanced functional prototype we studied 6 authentication methods (spoken PIN, biometrics, app with button/voice confirmation, card reader, sound authentication) regarding their perceived security and ease of use. While token-based authentication approaches (in particular an authenticator app on a smartphone) typically are perceived as more secure, they are found inferior when it comes to the ease of use. The currently most frequently used authentication method for smart speakers, the spoken PIN method, seems to represent a compromise between security and ease of use. The sophisticated sound authentication was appreciated for its ease of use, however, was rated worst regarding the perceived security.
  • Workshopbeitrag
    An interface for increasing users’ understanding of smart home systems using gamification
    (Mensch und Computer 2021 - Workshopband, 2021) Lakbir, Mohamed; Akyildiz, Serkan; Gupta, Pulkit; Afola, Marlyse; Sieger, Leonie Nora
    Smart home systems are becoming more and more popular as the technologies become more sophisticated and efficient. Despite this interest and popularity, the use and acceptance of smart home systems are still low. This is due to factors such as lack of understanding of how smart home systems work, as well as concerns about privacy and data protection. We created a concept of a smart home interface that is supposed to increase understanding of the functioning and data management of the system through gamification. Interviews were conducted with possible users, who were questioned about their experiences with and opinions about certain aspects of smart home systems, to further investigate the factors that impact acceptance. After that, the subjects were presented our concept, which is supposed to solve these barriers. Results show that most participants worry about a lack of transparency of data usage in a smart home but have mostly positive feelings about our concept. We conclude that our gamification approach has the potential to make people more aware of how personal data works and how it is handled.
  • Konferenzbeitrag
    (Non-)Interacting with conversational agents: perceptions and motivations of using chatbots and voice assistants
    (Mensch und Computer 2020 - Tagungsband, 2020) Weber, Philip; Ludwig, Thomas
    Conversational agents (CAs) such as Siri, Alexa, and Google Assistant are increasingly penetrating everyday life. From a Human¬–Computer Interaction (HCI) perspective, designing CAs that appropriately support the way they are used within daily life is still challenging. While initial design guide¬lines for human–AI interaction exist, we still know little about how users actually perceive CAs within their daily lives and what as¬pects motivate their usage of such tools. Within our research, we therefore conducted an interview study with 29 participants to uncover daily positive and negative experiences with CAs. By revealing how users currently perceive CAs, we identify quality criteria that could inform their future design. By evaluating these criteria with respect to existing research discourses about user experience (UX) guidelines for CAs, we contribute to the field by extending these guidelines from an end-user’s perspective.