Auflistung nach Autor:in "Rzayev, Rufat"
1 - 3 von 3
Treffer pro Seite
Sortieroptionen
- KonferenzbeitragThe Effect of Presence and Appearance of Guides in Virtual Reality Exhibitions(Mensch und Computer 2019 - Tagungsband, 2019) Rzayev, Rufat; Karaman, Gürkan; Wolf, Katrin; Henze, Niels; Schwind, ValentinVirtual reality (VR) enables users to experience informal learning activities, such as visiting museum exhibitions or attending tours independent of their physical locations. Consequently, VR offers compelling use cases by making informal learning and education accessible to a broader audience and simultaneously reducing the carbon footprint. For many learning activities, the presence of a human guide is essential for participants' experience. The effect of the presence of a guide and its appearance in VR is, however, unclear. In this paper, we compare a real-world guide with a realistic, an abstract, and an audio-only representation of a virtual guide. Participants followed four multimodal presentations while we investigated the effect on comprehension, presence, co-presence and the perception of the guide. Our results show that even a realistic presentation of a guide results in significantly lower co-presence, humanness, and attractiveness compared to a human guide. Qualitative results and participants' feedback indicate that having no visual representation of the guide helps to focus on the content but can reduce the connection with the guide.
- KonferenzbeitragEffects of position of real-time translation on AR glasses(Mensch und Computer 2020 - Tagungsband, 2020) Rzayev, Rufat; Hartl, Sabrina; Wittmann, Vera; Schwind, Valentin; Henze, NielsAugmented reality (AR) provides users with contextually relevant multimedia content by overlaying it on real-world objects. However, overlaying virtual content on real-world objects can cause occlusion. Especially for learning use cases, the occlusion might result in missing real-world information important for learning gain. Therefore, it is important to understand how virtual content should be positioned relative to the related real-world information without negatively affecting the learning experience. Thus, we conducted a study with 12 participants using AR glasses to investigate the position of virtual content using a vocabulary learning task. Participants learned foreign words shown in the surrounding while viewing translations using AR glasses as an overlay, on the right or below the foreign word. We found that showing virtual translations on top of foreign words significantly decreases comprehension and increase users' task load. Insights from our study inform the design of applications for AR glasses supporting vocabulary learning.
- KonferenzbeitragNotiModes: an investigation of notification delay modes and their effects on smartphone users(Mensch und Computer 2020 - Tagungsband, 2020) Poguntke, Romina; Schneegass, Christina; Vekens, Lucas Van der; Rzayev, Rufat; Auda, Jonas; Schneegass, Stefan; Schmidt, AlbrechtDespite the extensive analysis of the consequences of interruptions caused by smartphone notifications, research on the effects on users has so far been sparse. Therefore, in this work we (1) explore concepts on preventing interruptions elicited by notification delay in a focus group; (2) implement a smartphone application manipulating the notification delay in three distinct ways varying in the degree of user-control; (3) evaluate all three concepts with 13 users in a four-week field trial. We thereby gather qualitative feedback in 52 semi-structured interviews, one per participant after each mode and an additional control week. The results show that through the intensive preoccupation with their notification management, users reflect critically about advantages and disadvantages of their continuous reachability. Based on the results from the focus group and field trial, we derive four design implications summarizing the users’ experiences and suggestions on notification delay mechanisms.