Interval type-2 fuzzy aggregation operator in decision making and its application

Abstract Type-2 fuzzy sets (T2FSs) can deal with higher modeling and uncertainties which exist in the real-world application, specifically control systems. Particularly climate changes are always uncertain thus, type-2 controller is an effective system to handle those situations. Polyhouse a methodology used cultivate plants. It breaks seasonal hurdle of formulation it also suitable for conflictive conditions. Controlling directing internal parameters polyhouse play essential role growth plant. Among those, humidity important element when one deals plant polyhouse. affects weather, as well global change hence, inner will be disturbed. In this paper, operational laws triangular interval numbers derived weighted geometric (TIT2WG) operator their desired mathematical properties using Dombi norms. Also, analyzed (IT2FC) use aggregation aim paper. Further stability has been by applying four different defuzzification methods method recommended gives better response.