List of Articles Optimistic and pessimistic efficiencies Open Access Article Abstract Page Full-Text 1 - A new approach based on data envelopment analysis with double frontiers for ranking the discovered rules from data mining Hossein Azizi Open Access Article Abstract Page Full-Text 2 - Evaluating the performances of decision-making units based on the optimistic and pessimistic points of view Hossein Azizi Maziar Salahi Open Access Article Abstract Page Full-Text 3 - Decision models for evaluation and selection of suppliers in the presence of cardinal and ordinal data, weight restrictions, and non-discretionary factors: An approach based on DEA with double frontiers Hossein Azizi Rasul Jahed Open Access Article Abstract Page Full-Text 4 - Evaluation and Selection of a Supplier by Interval DEA Models with Assurance Region: ADEA Approach to Efficient and Inefficient Frontiers Hossein Azizi Akbar Jafari Shaerlar Open Access Article Abstract Page Full-Text 5 - A New Method for Ranking the Discovered Rules Obtained from Data Mining Using Data Envelopment Analysis Hossein Azizi Open Access Article Abstract Page Full-Text 6 - Technology Selection in The Presence of Both Cardinal and Ordinal Data Hoosen Azizi Reza Farzipoor Saen