[Forschungsseminar-BSV] Forschungsseminar Computergrafik, Bildverarbeitung und Visualisierung

[Christian Heine]

E I N L A D U N G

zum Forschungsseminar Computergrafik, Bildverarbeitung und
Visualisierung am Mittwoch, 2008-01-16, 13:00 Uhr, Raum JG 1-43 in
der Johannisgasse 26.


Wir hören einen Vortrag von

        Christian Heine
        Universität Leipzig

mit dem Titel

        Euler Diagram Rendering on the GPU
        for Document Cluster Exploration


Abstract

Efficient human exploration of document collections is still a major
challenge. Common approaches combine automatic natural language
processing techniques and interactive visualization approaches.
Typically, automatic text analysis creates an information space and
projection methods allow interactive visual exploration of the
space. Since the information space creation is usually not perfect
and projection increases the problem, users often wish to change the
projection and sometimes the information space during the
exploration phase to obtain an improved model of the document
collection. Therefore, we present a fast GPU-based rendering of
Euler diagrams using colors and patterns to distinguish different
sets including the various intersections. We apply this approach to
a combination of document and paragraph clusterings based on novel
methods from computational linguistics. Users can interactively
change cluster, document, and paragraph layout. Furthermore, the
user can, in principle, also change the clustering which may lead to
effective steering of the information space creation in the future.
Finally, the visualisation allows the selection of particularly
coherent or incoherent parts of texts with the least possible effort.

Der Vortrag wird in Deutsch gehalten.

Alle Interessierten sind im Namen von Prof. Dr. Scheuermann herzlich
eingeladen.

Weitere Informationen zum Forschungsseminar sind auf der Webseite
http://www.informatik.uni-leipzig.de/bsv/bsvneu/index.php?option=com_content&task=view&id=85&Itemid=94
zu finden.

Mit freundlichen Grüßen,
Christian Heine