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  • Informatické kolokvium 19. 12. Navigating the Space of Visualizations

    Informatické kolokvium 19. 12. 2017, 14:00 posluchárna D2
    prof. Stefan Bruckner, Faculty of Mathematics and Natural Sciences, University
    of Bergen
    Navigating the Space of Visualizations
    Anstrakt: Considering the vast amounts of data involved in many scientific
    disciplines and industrial applications, it is essential to provide effective
    and efficient means for forming a mental model of the underlying phenomenon. The
    term "visualization" refers to the process of extracting meaningful information
    from data and constructing a visual representation of this information.

    While the concept of using images to communicate complex phenomena of course
    predates the development of digital technology by millennia, over the past
    decades the field of visualization has firmly established itself as an important
    and constantly expanding discipline within computer science. Computer-based
    Visualization seeks to provide interactive graphical data representations,
    taking advantage of the extraordinary capability of the human brain to process
    visual information. Advanced visualization methods now play an an important role
    in the exploration, analysis, and presentation of data in many fields such as
    medicine, biology, geology, or engineering. This development, however, has also
    lead to the fact that there is now a vast number of often very specialized
    techniques to visualize different types of data tailored towards specific tasks.
    For non-experts it becomes non-trivial to choose appropriate methods that will
    provide the optimal answers to their questions.

    In this talk, I will discuss previous and ongoing research on how we can explore
    and navigate the space of visualizations itself. By consider the interplay
    between data, visualization algorithms, their parameters, perception, and
    cognition as a complex phenomenon that deserves study in its own right, we are
    making progress in providing goal-oriented interfaces for visual analysis. For
    instance, we can make the modification of input parameters of visualization
    algorithms more intuitive by normalizing their perceived effects over the entire
    value range, and provide visual guidance about their influence. Furthermore, by
    incorporating additional knowledge into the visualization process, we can infer
    information about the goals of a user, and develop smarter systems that
    automatically suggest appropriate visualization techniques. This line of
    investigation leads us along the path towards a new type of visual data science,
    where automated data analysis approaches such as deep learning are tightly
    coupled with interactive visualization techniques to exploit their complementary
    advantages for knowledge discovery in data-driven science.

    Stručný životopis: Stefan Bruckner is professor in visualization at the
    Department of Informatics of the University of Bergen, Norway. Prior to his
    appointment in Bergen, he was an assistant professor at the TU Wien, Austria
    where he also received his habilitation (2012) and PhD (2008). His research
    focuses on interactive visualization and he has made important contributions to
    several areas such as illustrative methods, parameter space exploration, feature
    detection, and knowledge-based interfaces. Prof. Bruckner has successfully led
    several research projects including industry collaborations with partners such
    as AGFA HealthCare and GE Healthcare. His results were published in the premier
    venues for visualization research and have to date received 8 best paper awards
    and honorable mentions at international events. He won the Karl-Heinz-Höhne
    Award for Medical Visualization and received the prestigious Eurographics Young
    Researcher Award. As an active member of the international scientific community,
    Prof. Bruckner regularly serves on the program committees of the leading
    conferences in visualization and computer graphics. He was program co-chair of
    EuroVis, PacificVis, VCBM, and the Eurographics Medical Prize, and currently
    serves on the editorial board of Computers & Graphics. He is a member of the
    IEEE Computer Society, ACM SIGGRAPH, and Eurographics.

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