A collaboration network of scientists posting preprints.
A collaboration network of scientists posting preprints on the astrophysics archive at www.arxiv.org, 1995-1999, as compiled by M. Newman. The network is weighted, with weights assigned as described in the original papers.
M. E. J. Newman, The structure of scientific collaboration networks, Proc. Natl. Acad. Sci. USA 98, 404-409 (2001).
M. E. J. Newman, Scientific collaboration networks: I. Network construction and fundamental results, Phys. Rev. E 64, 016131 (2001).
M. E. J. Newman, Scientific collaboration networks: II. Shortest paths, weighted networks, and centrality, Phys. Rev. E 64, 016132 (2001).
Original data obtained from: http://www-personal.umich.edu/~mejn/netdata/