Evaluating User Experience Using Physiological Data from Conversational Interfaces for Interactive TV

다국어 초록 (Multilingual Abstract)

Objective: This study aims to investigate TV viewers’ user experience (UX) of a conversational agent (CA) that assisted interactions while watching TV. Background: TV is evolving into an interactive product as technology advances, but the TV interface has not changed much. This can limit the UX of interactive TV viewers. Therefore, it is necessary to identify how the use of voice-interactive interface affects the TV users in order to have a better interactive TV experience. Method: To comparatively analyze the UX with the CA interface and the traditional remote control unit (RCU) interface, physiological measurements (skin conductance; SC) for objective data as well as self-report questionnaires were evaluated. Results: Physiological measurement results showed that SC differed between CA and RCU interactions. Most SC data were high at the beginning of the CA interaction but decreased over time. In RCU sessions, SC maintained a constant value or increased. Consequently, CA had a greater effect on the overall attractiveness while having more emotional appeal. Conclusion: Subjective results showed that CA provided a more positive TV experience regarding emotional aspects. Application: Physiological measurement can provide a more detailed and rich interpretation of the emotional changes and cognitive efforts during human-TV interaction, leading to better understanding of the UX meditated by interactive agent.

목차 (Table of Contents)

• ABSTRACT
• 1. Introduction
• 2. Method
• 3. Results
• 4. Conclusion
• References