Performance Analysis of Interval Type-2 Fuzzy X¯ and R Control Charts
Túlio S. Almeida,
Amanda dos Santos Mendes,
Paloma M. S. Rocha Rizol
et al.
Abstract:Statistical process control (SPC) is one of the most powerful techniques for improving quality, as it is able to detect special causes of problems in processes, products and services with a remarkable degree of accuracy. Among SPC tools, X¯ and R control charts are widely employed in process monitoring. However, scenarios involving vague, imprecise and even subjective data require a type-2 fuzzy set approach. Thus, X¯ and R control charts should be coupled with interval type-2 triangular fuzzy numbers (IT2TFN)… Show more
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