List of Articles Opinion Mining Open Access Article Abstract Page Full-Text 1 - An Improved Sentiment Analysis Algorithm based on Appraisal Theory and Fuzzy Logic Azadeh Roustakiani Neda Abdolvand Saeideh Rajaei Harandi 10.7508/jist.2018.02.004 Open Access Article Abstract Page Full-Text 2 - Presenting the model for opinion mining at the document feature level for hotel users' reviews ELHAM KHALAJJ shahriyar mohammadi Open Access Article Abstract Page Full-Text 3 - Numeric Polarity Detection based on Employing Recursive Deep Neural Networks and Supervised Learning on Persian Reviews of E-Commerce Users in Opinion Mining Domain Sepideh Jamshidinejad Fatemeh Ahmadi-Abkenari Peiman Bayat Open Access Article Abstract Page Full-Text 4 - Improving polarity identification in sentiment analysis using sarcasm detection and machine learning algorithms in Persian tweets Shaghayegh hajiabdollah Mitra Mirzarezaee Mir Mohsen Pedram Open Access Article Abstract Page Full-Text 5 - Improving Opinion Aspect Extraction Using Domain Knowledge and Term Graph Mohammadreza Shams Ahmad Baraani Mahdi Hashemi