纯区间直觉模糊数的算术集结算子及其在群决策中的应用

Methods for aggregating pure interval-valued intuitionistic fuzzy information are investigated. Some operational laws of interval-valued intuitionistic fuzzy numbers, score function and accuracy function of interval-valued intuitionistic fuzzy numbers are intriduced. Based on these operational laws, some aggregation operators, including pure interval-valued intuitionistic fuzzy weighted arithmetric averaging (PI-IFWAA) operator and pure interval-valued intuitionistic fuzzy ordered weighted averaging (PI-IFOWA) operator, are proposed. An approach to multiple attribute group decision making (MAGDM) with interval-valued intuitionistic fuzzy information is developed based on the PI-IFWAA and the PI-IFOWA operators. Finally, an illustrative example is given to verify the developed approach and to demonstrate its practicality and effectiveness.