9 research outputs found
Collaborative behavior, performance and engagement with visual analytics tasks using mobile devices
Interactive visualizations are external tools that can support usersâ exploratory activities. Collaboration can bring benefits to the exploration of visual representations or visuâ alizations. This research investigates the use of coâlocated collaborative visualizations in mobile devices, how users working with two different modes of interaction and view (Shared or NonâShared) and how being placed at various position arrangements (CornerâtoâCorner, FaceâtoâFace, and SideâbyâSide) affect their knowledge acquisition, engagement level, and learning efficiency. A user study is conducted with 60 particiâ pants divided into 6 groups (2 modesĂ3 positions) using a tool that we developed to support the exploration of 3D visual structures in a collaborative manner. Our results show that the shared control and view version in the SideâbyâSide position is the most favorable and can improve task efficiency. In this paper, we present the results and a set of recommendations that are derived from them
Smart views in smart meeting rooms
Ziel der Dissertation ist es, eine Problemlösung zu entwickeln fĂŒr die Generierung und Anzeige von InformationsreprĂ€sentationen und die Interaktion mit diesen InformationsreprĂ€sentationen in Smart Meeting Rooms, unter BerĂŒcksichtigung der HeterogenitĂ€t und Dynamik der Umgebung. FĂŒr die PrĂ€sentation von Informationen in Smart Meeting Rooms wird das Konzept des Smart View Managements und fĂŒr die Interaktion wird das Konzept des Smart Interaction Managements vorgestellt. Auf Basis dieser beiden Konzepte werden Methoden zur interaktiven Manipulation der InformationsreprĂ€sentationen vorgestellt
Cross-Device Taxonomy:Survey, Opportunities and Challenges of Interactions Spanning Across Multiple Devices
Designing interfaces or applications that move beyond the bounds of a single device screen enables new ways to engage with digital content. Research addressing the opportunities and challenges of interactions with multiple devices in concert is of continued focus in HCI research. To inform the future research agenda of this field, we contribute an analysis and taxonomy of a corpus of 510 papers in the cross- device computing domain. For both new and experienced researchers in the field we provide: an overview, historic trends and unified terminology of cross-device research; discussion of major and under-explored application areas; mapping of enabling technologies; synthesis of key interaction techniques spanning across multiple devices; and review of common evaluation strategies. We close with a discussion of open issues. Our taxonomy aims to create a unified terminology and common understanding for researchers in order to facilitate and stimulate future cross-device research
Visuelle Informationsdarstellung in Smart Environments
Ziel der Dissertation ist eine adaptive Informationsvisualisierung in Smart Meeting Rooms unter BerĂŒcksichtigung eines heterogenen und sich dynamisch verĂ€ndernden GerĂ€teensembles. Dazu wurde eine Klassifikation fĂŒr derartige Adaptionsmechanismen entwickelt, die sich entweder auf die Informationsdarstellung oder den Prozess der Erzeugung visueller ReprĂ€sentationen bezieht, die zwischen einer rĂ€umlichen und einer zeitlichen Adaption unterscheidet bzw. zwischen einer globalen oder lokalen Bildanpassung. FĂŒr jede der Klassen wurde exemplarisch eine Lösungsstrategie entworfen und umgesetzt
Designing for Cross-Device Interactions
Driven by technological advancements, we now own and operate an ever-growing number of digital devices, leading to an increased amount of digital data we produce, use, and maintain. However, while there is a substantial increase in computing power and availability of devices and data, many tasks we conduct with our devices are not well connected across multiple devices. We conduct our tasks sequentially instead of in parallel, while collaborative work across multiple devices is cumbersome to set up or simply not possible. To address these limitations, this thesis is concerned with cross-device computing. In particular it aims to conceptualise, prototype, and study interactions in cross-device computing. This thesis contributes to the field of Human-Computer Interaction (HCI)âand more specifically to the area of cross-device computingâin three ways: first, this work conceptualises previous work through a taxonomy of cross-device computing resulting in an in-depth understanding of the field, that identifies underexplored research areas, enabling the transfer of key insights into the design of interaction techniques. Second, three case studies were conducted that show how cross-device interactions can support curation work as well as augment usersâ existing devices for individual and collaborative work. These case studies incorporate novel interaction techniques for supporting cross-device work. Third, through studying cross-device interactions and group collaboration, this thesis provides insights into how researchers can understand and evaluate multi- and cross-device interactions for individual and collaborative work. We provide a visualization and querying tool that facilitates interaction analysis of spatial measures and video recordings to facilitate such evaluations of cross-device work. Overall, the work in this thesis advances the field of cross-device computing with its taxonomy guiding research directions, novel interaction techniques and case studies demonstrating cross-device interactions for curation, and insights into and tools for effective evaluation of cross-device systems
Contributions to the cornerstones of interaction in visualization: strengthening the interaction of visualization
Visualization has become an accepted means for data exploration and analysis. Although interaction is an important component of visualization approaches, current visualization research pays less attention to interaction than to aspects of the graphical representation. Therefore, the goal of this work is to strengthen the interaction side of visualization. To this end, we establish a unified view on interaction in visualization. This unified view covers four cornerstones: the data, the tasks, the technology, and the human.Visualisierung hat sich zu einem unverzichtbaren Werkzeug fĂŒr die Exploration und Analyse von Daten entwickelt. Obwohl Interaktion ein wichtiger Bestandteil solcher Werkzeuge ist, wird der Interaktion in der aktuellen Visualisierungsforschung weniger Aufmerksamkeit gewidmet als Aspekten der graphischen ReprĂ€sentation. Daher ist es das Ziel dieser Arbeit, die Interaktion im Bereich der Visualisierung zu stĂ€rken. Hierzu wird eine einheitliche Sicht auf Interaktion in der Visualisierung entwickelt