2017 IEEE Pacific Visualization Symposium (PacificVis) (2017)
Seoul, South Korea
April 18, 2017 to April 21, 2017
An Nguyen , School of Information Technologies, University of Sydney, Australia
Seok-Hee Hong , School of Information Technologies, University of Sydney, Australia
We present a new multi-level graph drawing algorithm based on the k-core coarsening, a well-known cohesive subgroup analysis method in social network analysis. The k-core of a graph is also known as the degeneracy in graph theory, and can be computed in linear time. Our k-core based multi-level algorithm also includes a new concentric circle placement and a variation of force-directed layout to display the structure of graphs effectively. Experiments with real-world networks suggest that our algorithm performs well for visualization of large and complex scale-free networks, with a power-law degree distribution, a short diameter and a high clustering coefficient. Comparison with other multi-level algorithms shows that our method is fast and effective, in particular performs better than Walshaw  and FM3 .
Layout, Clustering algorithms, Algorithm design and analysis, Gravity, Visualization, Social network services, Approximation algorithms
An Nguyen and Seok-Hee Hong, "k-core based multi-level graph visualization for scale-free networks," 2017 IEEE Pacific Visualization Symposium (PacificVis)(PACIFICVIS), Seoul, South Korea, 2017, pp. 21-25.