Research On Three-way Group Conflict Analysis Based On Q-rung Orthopair Fuzzy Set

The phenomenon of conflict runs throughout social life all the time.The study of conflict has great significance in theory and practice.The major research emphases in conflict analysis theory are finding the intrinsic reason of the conflict and giving the resolution of conflict.In this thesis,three works are proposed.The main research content of this thesis is to extend the methods of conflict analysis and conflict resolution to the q-rung orthopair fuzzy information system,solve the problems existing in the generalized models,define the conflict distance and the fuzzy rough self-information evaluation of the feasible strategy,and improve the two generalized models.Finally,three-way decision theory is introduced,and give the semantics of Bayesian risk loss for model parameters.The specific content includes the following three aspects:(1)An extended conflict analysis model based on q-orthogonal fuzzy information system is proposed.The problems in the process of constructing dynamic conflict analysis model based on q-orthogonal fuzzy information system are studied.(2)A new conflict distance is defined based on the discern function.Based on the new definition of conflict distance,a bridge between conflict distance and discern function-based conflict analysis models is built,and a comprehensive model is obtained.The model has the ability to describe the intrinsic causes of conflicts and provide conflict resolution methods.(3)A new conflict analysis model based on q-orthogonal fuzzy information is proposed,and fuzzy rough self-information evaluation of feasible strategies is defined.According to the monotonicity of fuzzy rough self-information evaluation,a backward algorithm is constructed to find the optimal feasible strategy.In this thesis,conflict analysis theory is extended to q-rung orthopair fuzzy information system,so that the former can better deal with the real conflict situation.The lack of semantic interpretation of model parameters in q-rung orthopair fuzzy information system is solved by introducing the three-way decision theory.