List of Articles sentiment Open Access Article Abstract Page Full-Text 1 - Sentimental Categorization of Persian News Headlines using Three Machine Learning Techniques Versus Human Categorization Vahid Mirzaeian Open Access Article Abstract Page Full-Text 2 - NSE: An effective model for investigating the role of pre-processing using ensembles in sentiment classification Razieh Asgarnezhad Amirhassan Monadjemi