Pajek/patents_main

Pajek network: main NBER US Patent Citations, 1963-1999, cites 1975-1999
Name patents_main
Group Pajek
Matrix ID 1513
Num Rows 240,547
Num Cols 240,547
Nonzeros 560,943
Pattern Entries 560,943
Kind Directed Weighted Graph
Symmetric No
Date 2001
Author B. Hall, A. Jaffe, M. Tratjenberg
Editor V. Batagelj
Structural Rank
Structural Rank Full
Num Dmperm Blocks
Strongly Connect Components 240,547
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
Download MATLAB Rutherford Boeing Matrix Market
Notes
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Pajek network converted to sparse adjacency matrix for inclusion in UF sparse 
matrix collection, Tim Davis.  For Pajek datasets, See V. Batagelj & A. Mrvar,
http://vlado.fmf.uni-lj.si/pub/networks/data/.                                
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Regarding conversion for UF sparse matrix collection: in the original data    
there are 561,060 weighted edges.  Of this, 117 are duplicates, with identical
edge weights.  These extraneous edges have been removed in this version.      
Also, the original data has auxiliary data for all 6,009,554 US Patents in the
time period.  This patent network has only 240,547 patents, and the auxiliary 
data (appyear, class, etc.) is matched here to the nodes of the graph.        
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