فهرس المقالات Saeedeh Rajaee Harandi المقاله 1 - A RFMV Model and Customer Segmentation Based on Variety of Products 10.7508/jist.2017.19.002 Saman Qadaki Moghaddam Neda Abdolvand Saeedeh Rajaee Harandi Journal of Information Systems and Telecommunication (JIST) , العدد 3 , السنة 5 , تابستان 2017 المقاله 2 - An Improved Sentiment Analysis Algorithm Based on Appraisal Theory and Fuzzy Logic 10.7508/jist.2018.02.004 Azadeh Roustakiani Neda Abdolvand Saeideh Rajaei Harandi Journal of Information Systems and Telecommunication (JIST) , العدد 2 , السنة 6 , بهار 2018