This is a dataset with a "planted vertex cover" core-periphery structure. Each edge in the network contains at least one node in the core. In this dataset, the core corresponds to the students and faculty at the MIT Media Laboratory or MIT Sloan business school participating in the reality mining study. Edges are phone calls.

• number of nodes: 9,018
• number of edges: 10,639
• number of core nodes: 90
• minimum vertex cover size: 82

Data files:

• pvc-call-Reality.tar.gz

If you use this data, please cite the following papers:

• Found Graph Data and Planted Vertex Covers.
  Austin R. Benson and Jon Kleinberg.
  Advances in Neural Information Processing Systems, 2018. [bibtex]
• Reality mining: sensing complex social systems.
  Nathan Eagle and Alex (Sandy) Pentland.
  Personal and ubiquitous computing, 10(4), 255–268, 2006. [bibtex]