Pairs of morphologically related Arabic words extracted from hypertext to Wikipedia title. The pairs were used for the ACL paper: K. Darwish, A. M. Ali (2012). Arabic Retrieval Revisited: Morphological Hole Filling. ACL-2012.
The pairs are NOT stemmed. To stem, we recommend that you use AMIRA 2.0, which can be obtained from: http://www.ibridgenetwork.org/columbia/ir_ms-12s-2-1
If you have questions, feel free to contact the first author on the paper.