فهرس المقالات امیرمسعود افتخاری مقدم المقاله 1 - An Experimental Study on Performance of Text Representation Models for Sentiment Analysis 10.7508/jist.2020.01.005 Sajjad Jahanbakhsh Gudakahriz Amir Masoud Eftekhari Moghaddam Fariborz Mahmoudi Journal of Information Systems and Telecommunication (JIST) , العدد 1 , السنة 8 , زمستان 2020