The general/standard format to store graphs is GXL (Graph eXchange Language), which is an extensible markup language (XML) .
However, in this work all provided source codes and binaries rely on a lighter representation format for graphs, referred to as DAT. The reason behind using this format is that all methods are developed in C, and with such format it is easier/faster to parse graphs.
More details about DAT format, and a code snippet can be found in the Source Code page.
Every database mentioned below is given in the two versions (GXL and DAT).
Please refer to the manuscript (Section 4.2) for details and explanations about each database and its cost functions.
For certain databases, subsets and cost functions are provided as well.
Download here.
Download here.
Download here.
There are two versions of this DB:
Download here.
Download here.
Download here.
Download here.
Download here.
Download here.
Download here.
(The script to generate the graphs is provided as well in the compressed file)