Who-trusts-whom network of
Name soc-Epinions1
Group SNAP
Matrix ID 2284
Num Rows 75,888
Num Cols 75,888
Nonzeros 508,837
Pattern Entries 508,837
Kind Directed Graph
Symmetric No
Date 2003
Author M. Richardson and R. Agrawal and P. Domingos
Editor J. Leskovec
Structural Rank
Structural Rank Full
Num Dmperm Blocks
Strongly Connect Components 42,185
Num Explicit Zeros 0
Pattern Symmetry 40.5%
Numeric Symmetry 40.5%
Cholesky Candidate no
Positive Definite no
Type binary
Download MATLAB Rutherford Boeing Matrix Market
Networks from SNAP (Stanford Network Analysis Platform) Network Data Sets,     
Jure Leskovec                         
email jure at                                                  
Epinions social network                                                        
Dataset information                                                            
This is a who-trust-whom online social network of a a general consumer review  
site 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  
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.                                                               
File    Description                                                            
soc-Epinions1.txt.gz    Directed Epinions social network