Matrix properties
number of rows	240,547
number of columns	240,547
nonzeros	560,943
# strongly connected comp.	240,547
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	B. Hall, A. Jaffe, M. Tratjenberg
editor	V. Batagelj
date	2001
kind	directed weighted graph
2D/3D problem?	no

Additional fields	size and type
appyear	full 240547-by-1
cat	full 240547-by-1
class	full 240547-by-1
date	full 240547-by-1
subcat	full 240547-by-1
year	full 240547-by-1
country	full 240547-by-4
nodename	full 240547-by-7

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.        
------------------------------------------------------------------------------

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.