%-------------------------------------------------------------------------------
% UF Sparse Matrix Collection, Tim Davis
% http://www.cise.ufl.edu/research/sparse/matrices/SNAP/cit-HepTh
% name: SNAP/cit-HepTh
% [Arxiv High Energy Physics paper citation network]
% id: 2293
% date: 2003
% author: J. Gehrke, P. Ginsparg, J. Kleinberg
% ed: J. Leskovec
% fields: name title A id date author ed kind notes aux
% aux: nodename
% kind: directed graph
%-------------------------------------------------------------------------------
% notes:
% Networks from SNAP (Stanford Network Analysis Platform) Network Data Sets,     
% Jure Leskovec http://snap.stanford.edu/data/index.html                         
% email jure at cs.stanford.edu                                                  
%                                                                                
% High-energy physics theory citation network                                    
%                                                                                
% Dataset information                                                            
%                                                                                
% Arxiv HEP-TH (high energy physics theory) citation graph is from the e-print   
% arXiv and covers all the citations within a dataset of 27,770 papers with      
% 352,807 edges. If a paper i cites paper j, the graph contains a directed edge  
% from i to j. If a paper cites, or is cited by, a paper outside the dataset, the
% graph does not contain any information about this.                             
%                                                                                
% The data covers papers in the period from January 1993 to April 2003 (124      
% months). It begins within a few months of the inception of the arXiv, and thus 
% represents essentially the complete history of its HEP-TH section.             
%                                                                                
% The data was originally released as a part of 2003 KDD Cup.                    
%                                                                                
% Dataset statistics                                                             
% Nodes   27770                                                                  
% Edges   352807                                                                 
% Nodes in largest WCC    27400 (0.987)                                          
% Edges in largest WCC    352542 (0.999)                                         
% Nodes in largest SCC    7464 (0.269)                                           
% Edges in largest SCC    116268 (0.330)                                         
% Average clustering coefficient  0.3295                                         
% Number of triangles     1478735                                                
% Fraction of closed triangles    0.1196                                         
% Diameter (longest shortest path)    14                                         
% 90-percentile effective diameter    5.4                                        
%                                                                                
% Source (citation)                                                              
%                                                                                
% J. Leskovec, J. Kleinberg and C. Faloutsos. Graphs over Time: Densification    
% Laws, Shrinking Diameters and Possible Explanations. ACM SIGKDD International  
% Conference on Knowledge Discovery and Data Mining (KDD), 2005.                 
%                                                                                
% J. Gehrke, P. Ginsparg, J. M. Kleinberg. Overview of the 2003 KDD Cup. SIGKDD  
% Explorations 5(2): 149-151, 2003.                                              
%                                                                                
% Files                                                                          
% File    Description                                                            
% cit-HepTh.txt.gz    Paper citation network of Arxiv High Energy Physics Theory 
%                     category                                                   
% cit-HepTh-dates.txt.gz  Time of nodes (paper submission time to Arxiv)         
% cit-HepTh-abstracts.tar.gz  Paper meta information (see below)                 
%                                                                                
% Example of paper meta information:                                             
%                                                                                
%     Paper: hep-th/0002031                                                      
%     From: Maulik K. Parikh                                                     
%     Date: Fri, 4 Feb 2000 17:04:51 GMT (10kb)                                  
%                                                                                
%     Title: Confinement and the AdS/CFT Correspondence                          
%     Authors: D. S. Berman and Maulik K. Parikh                                 
%     Comments: 12 pages, 1 figure, RevTeX                                       
%     Report-no: SPIN-1999/25, UG-1999/42                                        
%     Journal-ref: Phys.Lett. B483 (2000) 271-276                                
%     \\                                                                         
%       We study the thermodynamics of the confined and unconfined phases of     
%     superconformal Yang-Mills in finite volume and at large N using the AdS/CFT
%     correspondence. We discuss the necessary conditions for a smooth phase     
%     crossover and obtain an N-dependent curve for the phase boundary.          
%     \\                                                                         
%                                                                                
%                                                                                
%                                                                                
% NOTE: an identical version this problem already appears in the UF Collection:  
%                                                                                
% cit-HepTh           Pajek/HEP-th-new is identical to the                       
%                     SNAP/cit-HeptTh graph.  Since it's small, I have           
%                     decided to include both in the collection, to              
%                     keep the SNAP/ collection complete.                        
%                                     n: 27,770    nz:  352,807                  
%                                                                                
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