[Forschungsseminar-BSV] Research Seminar 'Computer Graphics, Image Processing, and Visualization'

[Vanessa Kretzschmar]

Attention:
  - digital


I N V I T A T I O N

======================================================================

to the Research Seminar 'Computer Graphics, Image Processing, and
Visualization'

     on Wednesday, September the 30th, 2020, at 01:15 PM,
     via web conferencing. 
(https://conf.informatik.uni-leipzig.de/b/kre-jky-vxf)

======================================================================

A talk will be given by

     Michelle Kampfrath

and is entitled:

     'A support system for identifying changes in infrastructures during 
disruption scenarios'

Abstract:

     To be able to provide necessary supplies in a crisis situation it is
     important to know which areas of an infrastructure network are 
important
     for fast travel. In case of a natural disaster, however, parts of the
     infrastructure could be destroyed which leads to certain roads and
     crossings being used more frequently than before. Therefore, an 
interactive
     application allowing to detect changes in infrastructure usage after
     parts of the network have been destroyed has been developed. A modified
     betweenness centrality is applied for measuring the relevance of a
     crossing with respect to a certain target (e.g., a hospital). 
Recognizing
     several successive states of individual crossings is enabled by a glyph
     visualization. Thus, important areas for reaching a particular target
     can be identified and changes over time as destruction increases can be
     analyzed. Simultaneously, the glyphs support comparing the importance
     of different areas with respect to different targets, as a certain area
     might be of interest for only one of them. The tool shows the experts
     already calculated betweenness centrality measures and lets them 
calculate
     new ones with a random disruption simulation. It provides a focus and
     context visualization supporting the experts analyzing areas in more
     detail while maintaining spatial reference to the remaining structure.
     Geometric and semantic zooming as well as panning is provided. The
     semantic zoom entails a removal of structures with dead ends or 
structures
     being connectors between two crossings. A force-directed-layout can be
     applied to move the glyphs further apart and therefore reduce 
overlapping.
     Ultimately, the application aims assisting planning and decision making
     in crisis situations.

======================================================================

On behalf of Professor Scheuermann all those interested are cordially
invited to attend.

Yours sincerely
Vanessa Kretzschmar
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