“…SA is viewed as a variation of the classical text categorization (TC) problem where the classes are simply the different polarities. This is not odd as many problems are approached as TC problems such as spam filtering (Aggarwal & Zhai, 2012), determining author's characteristics such as identity (Juola, 2006;Stamatatos, 2009;Alwajeeh et al, 2014;Albadarneh et al, 2015), demographic and psychometric traits (Estival et al, 2007), gender (Cheng, Chandramouli, & Subbalakshmi, 2011;Alsmearat et al, 2014Alsmearat et al, , 2015, dialect (Zaidan & Callison-Burch, 2013), native language (Tetreault, Burstein, & Leacock, 2013), political orientation (Koppel, Akiva, Alshech, & Bar, 2009;Abooraig et al, 2014), etc.. The literature proposes two main approaches for TC: corpus-based (Hmeidi et al, 2015a) and lexicon-based (Ahmed et al, 2015).…”