Matrix: Gleich/wb-cs-stanford

Description: Stanford CS web, A(i,j)=1 if page i links to page j (2001)

Gleich/wb-cs-stanford graph Gleich/wb-cs-stanford graph
(bipartite graph drawing) (graph drawing of A+A')


Gleich/wb-cs-stanford
scc of Gleich/wb-cs-stanford

  • Home page of the UF Sparse Matrix Collection
  • Matrix group: Gleich
  • Click here for a description of the Gleich group.
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  • download as a MATLAB mat-file, file size: 53 KB. Use UFget(1841) or UFget('Gleich/wb-cs-stanford') in MATLAB.
  • download in Matrix Market format, file size: 90 KB.
  • download in Rutherford/Boeing format, file size: 67 KB.

    Matrix properties
    number of rows9,914
    number of columns9,914
    nonzeros36,854
    # strongly connected comp.4,391
    explicit zero entries0
    nonzero pattern symmetry 46%
    numeric value symmetry 46%
    typebinary
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorD. Gleich
    editorT. Davis
    date2001
    kinddirected graph
    2D/3D problem?no

    Notes:

    For nodenames, see http://www.cise.ufl.edu/research/sparse/aux/Gleich
    This graph is a subset of Gleich/wb-edu, with *.cs.stanford.edu only.
    

    SVD-based statistics:
    norm(A)38.3766
    min(svd(A))0
    cond(A)Inf
    rank(A)5,475
    null space dimension4,439
    full numerical rank?no
    singular value gap9.61204e+09

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

    Gleich/wb-cs-stanford 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.