1. Force-Directed Graph Layouts Revisited: A New Force Based on the T-Distribution
- Author
-
Zhong, Fahai, Xue, Mingliang, Zhang, Jian, Zhang, Fan, Ban, Rui, Deussen, Oliver, and Wang, Yunhai
- Subjects
Computer Science - Graphics ,Computer Science - Data Structures and Algorithms ,Computer Science - Human-Computer Interaction ,Computer Science - Social and Information Networks - Abstract
In this paper, we propose the t-FDP model, a force-directed placement method based on a novel bounded short-range force (t-force) defined by Student's t-distribution. Our formulation is flexible, exerts limited repulsive forces for nearby nodes and can be adapted separately in its short- and long-range effects. Using such forces in force-directed graph layouts yields better neighborhood preservation than current methods, while maintaining low stress errors. Our efficient implementation using a Fast Fourier Transform is one order of magnitude faster than state-of-the-art methods and two orders faster on the GPU, enabling us to perform parameter tuning by globally and locally adjusting the t-force in real-time for complex graphs. We demonstrate the quality of our approach by numerical evaluation against state-of-the-art approaches and extensions for interactive exploration., Comment: To appear in IEEE Transactions on Visualization and Computer Graphics
- Published
- 2023
- Full Text
- View/download PDF