All databases used in the experiments can be found online (see page Graph Databases).
Please refer to the manuscript (Section 4.2) for details and explanations about each database and its cost functions.
The cost functions implementation for each database can be found in a class called "GMEntity.cpp" in any of the below source code project.
This is a C# class that converts a database of GXL files into DAT files, which can later be used as inputs to the above projects/executables.
Usage: the dir variable needs to be changed, pointing to the folder with the GXL files are. The code will create a new folder at the same level with "_DAT" added to the original folder name.