12 months, 12,646 users from digg.com. Steven Buss
Name 12month1
Group Buss
Matrix ID 2263
Num Rows 12,471
Num Cols 872,622
Nonzeros 22,624,727
Pattern Entries 22,624,727
Kind Undirected Bipartite Graph
Symmetric No
Date 2009
Author S. Buss
Editor T. Davis
Structural Rank 12,418
Structural Rank Full false
Num Dmperm Blocks 82
Strongly Connect Components 13
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 1.524136e+03
Minimum Singular Value 0
Condition Number Inf
Rank 12,417
sprank(A)-rank(A) 1
Null Space Dimension 54
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
A full year of data from July 2008 to July 12, 2009, representing 12,646
users from digg.com.  Each row is a user, each column is a web page.    
From Steven Buss, for the Connectious project.