2 research outputs found
Visualizing and Interacting with Concept Hierarchies
Concept Hierarchies and Formal Concept Analysis are theoretically well
grounded and largely experimented methods. They rely on line diagrams called
Galois lattices for visualizing and analysing object-attribute sets. Galois
lattices are visually seducing and conceptually rich for experts. However they
present important drawbacks due to their concept oriented overall structure:
analysing what they show is difficult for non experts, navigation is
cumbersome, interaction is poor, and scalability is a deep bottleneck for
visual interpretation even for experts. In this paper we introduce semantic
probes as a means to overcome many of these problems and extend usability and
application possibilities of traditional FCA visualization methods. Semantic
probes are visual user centred objects which extract and organize reduced
Galois sub-hierarchies. They are simpler, clearer, and they provide a better
navigation support through a rich set of interaction possibilities. Since probe
driven sub-hierarchies are limited to users focus, scalability is under control
and interpretation is facilitated. After some successful experiments, several
applications are being developed with the remaining problem of finding a
compromise between simplicity and conceptual expressivity
Assistierte Informationsanzeige in Smart Meeting Rooms
Ziel dieser Arbeit ist es, Konzepte für eine assistierte Informationsanzeige in Smart Meeting Rooms bereitzustellen. Dafür werden 3 Modelle erarbeitet. Hierauf basierend wird das Austauschen von Inhalten zwischen mehreren Geräten und das automatische Verteilen und Anordnen von Views auf unterschiedlichen Displays adressiert. Ein Ansatz zur interaktiven, bedarfsgerechten Erzeugung von neuen Darstellungen wird vorgestellt. Manuelles Anpassen der Anzeige und die Suche nach semantisch passenden Inhalten wird durch Hilfsmittel unterstützt. Eine situationsangepasste Assistenz wird beschrieben