There should be ones specializing in Arabic or morphology, but the generic LREC is a quite wide one, e.g. http://lrec2018.lrec-conf.org/en/conference-programme/accept... has papers that seem relevant like "Build Fast and Accurate Lemmatization for Arabic" (http://www.lrec-conf.org/proceedings/lrec2018/pdf/1079.pdf), "Part-of-Speech Tagging for Arabic Gulf Dialect Using Bi-LSTM" (http://www.lrec-conf.org/proceedings/lrec2018/pdf/483.pdf), or "A Morphologically Annotated Corpus of Emirati Arabic" (http://www.lrec-conf.org/proceedings/lrec2018/pdf/529.pdf).