Matrix: SNAP/soc-Epinions1
Description: Who-trusts-whom network of Epinions.com
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| (bipartite graph drawing) | (graph drawing of A+A') |
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| Matrix properties | |
| number of rows | 75,888 |
| number of columns | 75,888 |
| nonzeros | 508,837 |
| # strongly connected comp. | 42,185 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 41% |
| numeric value symmetry | 41% |
| type | binary |
| structure | unsymmetric |
| Cholesky candidate? | no |
| positive definite? | no |
| author | M. Richardson and R. Agrawal and P. Domingos |
| editor | J. Leskovec |
| date | 2003 |
| kind | directed graph |
| 2D/3D problem? | no |
Notes:
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
Epinions social network
Dataset information
This is a who-trust-whom online social network of a a general consumer review
site Epinions.com. Members of the site can decide whether to ''trust'' each
other. All the trust relationships interact and form the Web of Trust which is
then combined with review ratings to determine which reviews are shown to the
user.
Dataset statistics
Nodes 75879
Edges 508837
Nodes in largest WCC 75877 (1.000)
Edges in largest WCC 508836 (1.000)
Nodes in largest SCC 32223 (0.425)
Edges in largest SCC 443506 (0.872)
Average clustering coefficient 0.2283
Number of triangles 1624481
Fraction of closed triangles 0.06568
Diameter (longest shortest path) 13
90-percentile effective diameter 5
Source (citation)
M. Richardson and R. Agrawal and P. Domingos. Trust Management for the Semantic
Web. ISWC, 2003.
Files
File Description
soc-Epinions1.txt.gz Directed Epinions social network
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.