Matrix: Pajek/HEP-th-new

Description: Pajek network: High Energy Physics literature

Pajek/HEP-th-new graph Pajek/HEP-th-new graph
(bipartite graph drawing) (graph drawing of A+A')

scc of Pajek/HEP-th-new

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  • download as a MATLAB mat-file, file size: 799 KB. Use UFget(1503) or UFget('Pajek/HEP-th-new') in MATLAB.
  • download in Matrix Market format, file size: 1 MB.
  • download in Rutherford/Boeing format, file size: 880 KB.

    Matrix properties
    number of rows27,770
    number of columns27,770
    # strongly connected comp.20,086
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    Cholesky candidate?no
    positive definite?no

    authorKDD Cup 2003
    editorV. Batagelj
    kinddirected graph
    2D/3D problem?no

    Additional fieldssize and type
    yearfull 27770-by-1
    datefull 27770-by-1
    nodenamefull 27770-by-7


    Pajek network converted to sparse adjacency matrix for inclusion in UF sparse 
    matrix collection, Tim Davis.  For Pajek datasets, See V. Batagelj & A. Mrvar,                                
     High Energy Particle Physics (HEP) literature with May 12, 2003 Update       
     Citation data from KDD Cup 2003, a knowledge discovery and data mining       
     competition held in conjunction with the Ninth Annual ACM SIGKDD Conference.                       
     The Stanford Linear Accelerator Center SPIRES-HEP database has been          
     comprehensively cataloguing the High Energy Particle Physics (HEP) literature
     online since 1974, and indexes more than 500,000 high-energy physics related 
     articles including their full citation tree.                                 
     The network contains a citation graph of the hep-th portion of the arXiv.    
     The units names are the arXiv IDs of papers; the relation is  X cites Y .    
     Note that revised papers may have updated citations. As such, citations may  
     refer to future papers, i.e. a paper may cite another paper that was publishe
     after the first paper.                                                       
     transformed in Pajek format: V. Batagelj, 26. July 2003                      
     The SLAC/SPIRES dates for all hep-th papers are given. Some older papers were
     uploaded years after their intial publication and the arXiv submission date  
     from the abstracts may not correspond to the publication date. An alternative
     date has been provided from SLAC/SPIRES that may be a better estimate        
     for the initial publication of these old papers.                             
     The vector contains the year in SLAC date of each paper.                     
     SLAC date of paper was transformed to the number of days since August 1, 1991

    SVD-based statistics:
    null space dimension6,154
    full numerical rank?no
    singular value gap3.66194e+08

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

    Pajek/HEP-th-new 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.