It is these orthographic variations and complex morphological structure that make Arabic language processing challenging ( Xu et al. , 2001 ; Xu et al. , 2002 ) .
empirical studies in strategies for arabic information retrieval
J Xu A Fraser R Weischedel
derivational and inflectional process , most prepositions , conjunctions , pronouns , and possessive forms are attached to the Arabic surface word . It is these orthographic variations and complex morphological structure that make Arabic language processing challenging ( Xu et al. , 2001 ; Xu et al. , 2002 ) . Both tasks are performed with a statistical framework : the mention detection system is similar to the one presented in ( Florian et al. , 2004 ) and the coreference resolution system is similar to the one described in ( Luo et al. , 2004 ) .
It is these orthographic variations and complex morphological structure that make Arabic language processing challenging ( Xu et al. , 2001 ; @@CITATION ) .