Abstract
AbstractA spherical linguistic fuzzy set is the addition of linguistic variables and a spherical fuzzy set. It includes both qualitative and quantitative estimates which can more effectively depict decision-maker’s actual choices and uncertainty. In this paper, we have mentioned the limitation of the existing score and accuracy function for spherical linguistic fuzzy numbers and proposed an improved score function and accuracy function using linguistic scale function to compare spherical linguistic fuzzy numbers. We have also proposed a spherical linguistic fuzzy weighted aggregation operator \((\check{\text{S}}\text{LFWA})\) and a spherical linguistic fuzzy ordered weighted aggregation operator \((\check{\text{S}}\rm{LFOWA})\). The proposed score, accuracy functions, and aggregation operator are applied in a numerical application.KeywordsSpherical linguistic fuzzy setScore functionAccuracy functionSpherical linguistic fuzzy weighted aggregation operatorSpherical linguistic fuzzy ordered weighted aggregation operator
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