Epinions signed social network
Name soc-sign-epinions
Group SNAP
Matrix ID 2325
Num Rows 131,828
Num Cols 131,828
Nonzeros 841,372
Pattern Entries 841,372
Kind Directed Weighted Graph
Symmetric No
Date 2010
Author J. Leskovec, D. Huttenlocher, J. Kleinberg
Editor J. Leskovec
Structural Rank
Structural Rank Full
Num Dmperm Blocks
Strongly Connect Components 88,609
Num Explicit Zeros 0
Pattern Symmetry 30.8%
Numeric Symmetry 30.2%
Cholesky Candidate no
Positive Definite no
Type integer
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 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   131828                                                                
Edges   841372                                                                
Nodes in largest WCC    119130 (0.904)                                        
Edges in largest WCC    833695 (0.991)                                        
Nodes in largest SCC    41441 (0.314)                                         
Edges in largest SCC    693737 (0.825)                                        
Average clustering coefficient  0.2424                                        
Number of triangles     4910076                                               
Fraction of closed triangles    0.08085                                       
Diameter (longest shortest path)    14                                        
90-percentile effective diameter    4.9                                       
Source (citation)                                                             
J. Leskovec, D. Huttenlocher, J. Kleinberg: Signed Networks in Social Media.  
28th ACM Conference on Human Factors in Computing Systems (CHI), 2010.                      
File    Description                                                           
soc-sign-epinions.txt.gz    Directed Epinions signed social network