Matrix: SNAP/wiki-Vote

Description: Wikipedia who-votes-on-whom network

SNAP/wiki-Vote graph SNAP/wiki-Vote graph
(bipartite graph drawing) (graph drawing of A+A')

scc of SNAP/wiki-Vote

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  • Matrix group: SNAP
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  • download as a MATLAB mat-file, file size: 175 KB. Use UFget(2288) or UFget('SNAP/wiki-Vote') in MATLAB.
  • download in Matrix Market format, file size: 273 KB.
  • download in Rutherford/Boeing format, file size: 169 KB.

    Matrix properties
    number of rows8,297
    number of columns8,297
    # strongly connected comp.6,998
    explicit zero entries0
    nonzero pattern symmetry 6%
    numeric value symmetry 6%
    Cholesky candidate?no
    positive definite?no

    authorJ. Leskovec, D. Huttenlocher, J. Kleinberg
    editorJ. Leskovec
    kinddirected graph
    2D/3D problem?no


    Networks from SNAP (Stanford Network Analysis Platform) Network Data Sets,     
    Jure Leskovec                         
    email jure at                                                  
    Wikipedia vote network                                                         
    Dataset information                                                            
    Wikipedia is a free encyclopedia written collaboratively by volunteers around  
    the world. A small part of Wikipedia contributors are administrators, who are  
    users with access to additional technical features that aid in maintenance. In 
    order for a user to become an administrator a Request for adminship (RfA) is   
    issued and the Wikipedia community via a public discussion or a vote decides   
    who to promote to adminship. Using the latest complete dump of Wikipedia page  
    edit history (from January 3 2008) we extracted all administrator elections and
    vote history data. This gave us 2,794 elections with 103,663 total votes and   
    7,066 users participating in the elections (either casting a vote or being     
    voted on). Out of these 1,235 elections resulted in a successful promotion,    
    while 1,559 elections did not result in the promotion. About half of the votes 
    in the dataset are by existing admins, while the other half comes from ordinary
    Wikipedia users.                                                               
    The network contains all the users and discussion from the inception of        
    Wikipedia till January 2008. Nodes in the network represent wikipedia users and
    a directed edge from node i to node j represents that user i voted on user j.  
    Dataset statistics                                                             
    Nodes   7115                                                                   
    Edges   103689                                                                 
    Nodes in largest WCC    7066 (0.993)                                           
    Edges in largest WCC    103663 (1.000)                                         
    Nodes in largest SCC    1300 (0.183)                                           
    Edges in largest SCC    39456 (0.381)                                          
    Average clustering coefficient  0.2089                                         
    Number of triangles     608389                                                 
    Fraction of closed triangles    0.1255                                         
    Diameter (longest shortest path)    7                                          
    90-percentile effective diameter    3.8                                        
    Source (citation)                                                              
    J. Leskovec, D. Huttenlocher, J. Kleinberg. Signed Networks in Social Media.   
    CHI 2010.                                                                      
    J. Leskovec, D. Huttenlocher, J. Kleinberg. Predicting Positive and Negative   
    Links in Online Social Networks. WWW 2010.                                     
    File    Description                                                            
    Wiki-Vote.txt.gz    Wikipedia adminship vote network till January 2008         

    SVD-based statistics:
    null space dimension5,918
    full numerical rank?no
    singular value gap6.86846e+10

    singular values (MAT file):click here
    SVD method used:s = svd (full (A)) ;

    SNAP/wiki-Vote svd

    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.