issue 1 publication date 2020-02-01

• cover Vol.17- No.1 February 2020
• Negations and aggregation operators based on a new hesitant fuzzy partial ordering
• A new method for fuzzification of nested dummy variables by fuzzy clustering membership functions and its application in financial economy
• Two-level supply chain for a deteriorating item with stock and promotional cost dependent demand under shortages
• Degrees of M-fuzzy families of independent L-fuzzy sets
• Adaptive particularly tunable fuzzy particle swarm optimization algorithm
• Type-2 fuzzy logic based pitch angle controller for fixed speed wind energy system
• A novel ranking method for intuitionistic fuzzy set based on information fusion and application to threat assessment
• Customer loyalty program based on quality function deployment with fuzzy linguistic preference relation
• Generalized interval-valued intuitionistic fuzzy Hamacher generalized Shapley Choquet integral operators for multicriteria decision making
• Joint influence of leakage delays and proportional delays on almost periodic solutions for FCNNs
• BL-general fuzzy automata and minimal realization: Based on the associated categories
• The Wijsman structure of a quantale-valued metric space
• On the non-parametric multivariate control charts in fuzzy environment
• Persian-translation - vol.17- no.1 february 2020