Description: Collaboration network of Arxiv Condensed Matter
|(undirected graph drawing)|
|number of rows||23,133|
|number of columns||23,133|
|# strongly connected comp.||567|
|explicit zero entries||0|
|nonzero pattern symmetry||symmetric|
|numeric value symmetry||symmetric|
|author||J. Leskovec, J. Kleinberg and C. Faloutsos|
|Additional fields||size and type|
Networks from SNAP (Stanford Network Analysis Platform) Network Data Sets, Jure Leskovec http://snap.stanford.edu/data/index.html email jure at cs.stanford.edu Condense Matter collaboration network Dataset information Arxiv COND-MAT (Condense Matter Physics) collaboration network is from the e-print arXiv and covers scientific collaborations between authors papers submitted to Condense Matter category. If an author i co-authored a paper with author j, the graph contains a undirected edge from i to j. If the paper is co-authored by k authors this generates a completely connected (sub)graph on k nodes. The data covers papers in the period from January 1993 to April 2003 (124 months). It begins within a few months of the inception of the arXiv, and thus represents essentially the complete history of its COND-MAT section. Dataset statistics Nodes 23133 Edges 186936 Nodes in largest WCC 21363 (0.923) Edges in largest WCC 182628 (0.977) Nodes in largest SCC 21363 (0.923) Edges in largest SCC 182628 (0.977) Average clustering coefficient 0.6334 Number of triangles 173361 Fraction of closed triangles 0.2643 Diameter (longest shortest path) 15 90-percentile effective diameter 6.6 Source (citation) J. Leskovec, J. Kleinberg and C. Faloutsos. Graph Evolution: Densification and Shrinking Diameters. ACM Transactions on Knowledge Discovery from Data (ACM TKDD), 1(1), 2007. Files File Description ca-CondMat.txt.gz Collaboration network of Arxiv Condensed Matter category
|null space dimension||956|
|full numerical rank?||no|
|singular value gap||1.26088e+10|
|singular values (MAT file):||click here|
|SVD method used:||s = svd (full (A))|
For a description of the statistics displayed above, click here.
Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.