Issue No.06 - June (2013 vol.19)
E. R. Gansner , AT&T Labs. Res., Florham Park, NJ, USA
Yifan Hu , AT&T Labs. Res., Florham Park, NJ, USA
S. North , AT&T Labs. Res., Florham Park, NJ, USA
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TVCG.2012.299
In some applications of graph visualization, input edges have associated target lengths. Dealing with these lengths is a challenge, especially for large graphs. Stress models are often employed in this situation. However, the traditional full stress model is not scalable due to its reliance on an initial all-pairs shortest path calculation. A number of fast approximation algorithms have been proposed. While they work well for some graphs, the results are less satisfactory on graphs of intrinsically high dimension, because some nodes may be placed too close together, or even share the same position. We propose a solution, called the maxent-stress model, which applies the principle of maximum entropy to cope with the extra degrees of freedom. We describe a force-augmented stress majorization algorithm that solves the maxent-stress model. Numerical results show that the algorithm scales well, and provides acceptable layouts for large, nonrigid graphs. This also has potential applications to scalable algorithms for statistical multidimensional scaling (MDS) with variable distances.
Stress, Layout, Computational modeling, Entropy, Force, Springs, Approximation methods, low-dimensional embedding, Graph drawing, metric embedding
E. R. Gansner, Yifan Hu, S. North, "A Maxent-Stress Model for Graph Layout", IEEE Transactions on Visualization & Computer Graphics, vol.19, no. 6, pp. 927-940, June 2013, doi:10.1109/TVCG.2012.299