Title	A Hybrid Technique for Detecting Extremism in Arabic Social Media Texts
Author	Amjed Abbas Ahmed, Israa Akram Alzuabidi, Sumaia Mohammed AL-Ghuribi, and Layla Safwat Jamil
Citation	Vol. 25  No. 3  pp. 122-133
Keywords	Extremism, lexicon, rough set theory, lower approximation, accuracy approximation, corpus..