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The document corpus used in CLEF-IP 2013 tasks is the same as the document corpus used in CLEF-IP 2011 and 2012. The corpus can be downloaded here

As a part of the MAREC collection, the CLEF-IP data sets are under the following license:

Creative Commons License MAREC by IRF is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Permissions beyond the scope of this license may be available at

Disclaimer: This data was specifically assembled for the CLEF-IP track.