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You may also take a look at the source code.
The network in this dataset can be loaded directly from graph-tool with:
import graph_tool.all as gt
g = gt.collection.ns["cora"]

cora — CORA citations (1998)


Citations among papers indexed by CORA, from 1998, an early computer science research paper search engine. If a paper i cites a paper j also in this data set, then a directed edge connects i to j. (Papers not in the data set are excluded.) Self-loops may be present. The dates of these snapshots are uncertain.1

  1. Description obtained from the ICON project. 

Informational Citation Unweighted
Upstream URL OK
Tip: hover your mouse over a table header to obtain a legend.
Name Nodes Edges $\left<k\right>$ $\sigma_k$ $\lambda_h$ $\tau$ $r$ $c$ $\oslash$ $S$ Kind Mode NPs EPs gt GraphML GML csv
cora 23,166 91,500 3.95 11.31 29.28 113.95 -0.05 0.12 20 1.00 Directed Unipartite meta 571 KiB 869 KiB 866 KiB 705 KiB
None drawing