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- Mark Ortmann, Ulrik Brandes
- ALENEX
- 2014

We show that most algorithms from the literature on listing the triangles of a graph have a common abstraction. Our unifying framework highlights that these seemingly different algorithms are in factâ€¦ (More)

- Mark Ortmann, Mirza Klimenta, Ulrik Brandes
- Graph Drawing
- 2016

Force-directed layout methods constitute the most common approach to draw general graphs. Among them, stress minimization produces layouts of comparatively high quality but also imposes comparativelyâ€¦ (More)

- Arlind Nocaj, Mark Ortmann, Ulrik Brandes
- Graph Drawing
- 2014

Small-world graphs have characteristically low average distance and thus cause force-directed methods to generate drawings that look like hairballs. This is by design as the inherent objective ofâ€¦ (More)

- Arlind Nocaj, Mark Ortmann, Ulrik Brandes
- J. Graph Algorithms Appl.
- 2015

Small-world graphs have characteristically low average distance and thus cause force-directed methods to generate drawings that look like hairballs. This is by design as the inherent objective ofâ€¦ (More)

- Mark Ortmann, Ulrik Brandes
- NetSci-X
- 2016

The prevalence of select substructures is an indicator of network effects in applications such as social network analysis and systems biology. Moreover, subgraph statistics are pervasive inâ€¦ (More)

Finding central nodes is a fundamental problem in network analysis. Betweenness centrality is a well-known measure which quantifies the importance of a node based on the fraction of shortest pathsâ€¦ (More)

- Ulrik Brandes, Moritz Heine, Julian MÃ¼ller, Mark Ortmann
- CALDAM
- 2017

Centrality indices assign values to the vertices of a graph such that vertices with higher values are considered more central. Triggered by a recent result on the preservation of the vicinal preorderâ€¦ (More)

- Mark Ortmann, Ulrik Brandes
- Applied Network Science
- 2017

The prevalence of select substructures is an indicator of network effects in applications such as social network analysis and systems biology. Moreover, subgraph statistics are pervasive inâ€¦ (More)

- Arlind Nocaj, Mark Ortmann, Ulrik Brandes
- IEEE Transactions on Visualization and Computerâ€¦
- 2016

Small-world networks have characteristically low pairwise shortest-path distances, causing distance-based layout methods to generate hairball drawings. Recent approaches thus aim at finding a sparserâ€¦ (More)

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