RFAI database of GXL Graphs and images



Description of the RFAI database :

The graph database is a collection of GXL files describing the contents of vectorized graphical images One directory is containing sub-graphs extracted from these complete graphs.

In order to easilly evaluate the diffierent characteristics of a method, the database is divided into sets of graphs based on the content of the initial image.
Each of these dasasets contains different number of images and graphs. The graphs have many symbolic and numerical attributes associated to the nodes and the edges.
The list of the node's attributes is depending of the "Forme" attribute. Vecteur, Quad and CC have different attributes.
In the actual GXL files, nodes of CC type have to be ignored because they are not linked to other nodes.

The directory called "sousgraphesextraits" contains sub-graphs extracted from GXL files of the above datasets. There are only nodes of Quad type in the actual sub-graphs (so perahps Vector nodes should not be considered too)

Be careful, because some of the sub graph can contains only one node or in the contrary can correspond to a complete initial graph. Information about number of nodes and edges are available in each GXL file the end of the GXL for complete graph, the beginning for sub-graph).


Downloading and condition of uses

Limitation of Liability

THE DATAS CONTAINED IN THIS DATABASE IS PROVIDED 'AS IS' WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK IS ASSUMED BY THE USER, AND IN NO EVENT WILL RFAI BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL OR DIRECT DAMAGES SUFFERED IN THE COURSE OF USING THE DATABASE.

This database is publicly available and free for research staff.
All publications and works that use this RFAI database must reference the following report: "RFAI/LI Database of graphs and sub-graphs extracted from line-drawing images. University of Tours - France, JY Ramel, March 2009".

You can also credit the "RFAI Graph database project" as the source of the data by referencing this web page in your publication.

Also, please send a copy of your publication to JY Ramel. We will eventually put a list of references on this web page.

Permission to use but not reproduce or distribute the database is granted to all researchers given that the following steps are properly followed:
  • Send an e-mail to JY Ramel before downloading the database.
  • All submitted papers that uses or talks about this database must cite the above reference
  • Permission is NOT granted to reproduce the database or posted into any other webpage.
  • None economical profit can be obtained from this database.


Contacting RFAI

Technical questions about the database, the GXL format, or problems obtaining the images should be directed to the database editors:
  • J-Y Ramel, "ramel@univ-tours.fr"