A fuzzy Choquet integral with an interval type-2 fuzzy number-valued integrand

Author(s):  
Timothy C. Havens ◽  
Derek T. Anderson ◽  
James M. Keller
Author(s):  
Gabriela E. Martínez ◽  
D. Olivia Mendoza ◽  
Juan R. Castro ◽  
Patricia Melin ◽  
Oscar Castillo

Author(s):  
Gabriela E. Martinez ◽  
Olivia Mendoza ◽  
Juan R. Castro ◽  
A. Rodriguez-Diaz ◽  
Patricia Melin ◽  
...  

Author(s):  
Burak Efe

Material handling refers to the processes of loading materials onto a material handling equipment, moving from one location to another location with the help of material handling equipment, and unloading the material from the transportation equipment to the relevant location. Non-ergonomic material handling equipment for the employee causes the increment of cycle time that does not add value to the product during transportation within the enterprise. The increase in cycle time causes an increase in fatigue and inefficiency in the employee. This study evaluates five material handling equipment based on eight ergonomic criteria by using interval type-2 fuzzy TOPSIS method. Interval type-2 fuzzy number provides to examine the fuzziness and the uncertainty more accurately than type-1 fuzzy number, which handles only one crisp membership degree. The opinions of experts are aggregated by employing interval type-2 fuzzy number operators.


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