Publikationen

Publikationen der Arbeitsgruppe, die seit 2016 erschienen sind. Frühere Publikationen von Fabian Beck sind auf Google Scholar oder DBLP zu finden.

Visualizing Dynamic Hierarchies in Graph Sequences

Art der Publikation: Beitrag in Zeitschrift

Visualizing Dynamic Hierarchies in Graph Sequences

Autor(en):
Vehlow, Corinna; Beck, Fabian; Weiskopf, Daniel
Titel der Zeitschrift:
IEEE Transactions on Visualization and Computer Graphics
Jahrgang (Veröffentlichung):
22 (2016)
Heftnummer:
10
Seiten:
2343-2357
Digital Object Identifier (DOI):
doi:10.1109/TVCG.2015.2507595
Datei:
Visualizing Dynamic Hierarchies in Graph Sequences (10,49 MB)
Zitation:
Download BibTeX

Kurzfassung

Graphs are used to model relations between objects, where these objects can be grouped hierarchically based on their connectivity. In many applications, the relations change over time and so does the hierarchical group structure. We developed a visualization technique that supports the analysis of the topology and the hierarchical group structure of a dynamic graph and the tracking of changes over time. Each graph of a sequence is visualized by an adjacency matrix, where the hierarchical group structure is encoded within the matrix using indentation and nested contours, complemented by icicle plots attached to the matrices. The density within and between subgroups of the hierarchy is represented within the matrices using a gray scale. To visualize changes, transitions and dissimilarities between the hierarchically structured graphs are shown using a flow metaphor and color coding. The design of our visualization technique allows us to show more than one hierarchical group structure of the same graph by stacking the sequences, where hierarchy comparison is supported not only within but also between sequences. To improve the readability, we minimize the number of crossing curves within and between sequences based on a sorting algorithm that sweeps through the sequences of hierarchies.