A novel hybrid grey-interval type-2 fuzzy logic system

Abstract

This research intends to propose a novel hybrid model of interval type-2 fuzzy logic system (IT2FLS) and grey theory model to produce a sound forecasting method. The proposed model couples an IT2FLS with a grey model theory namely as greyinterval type-2 fuzzy logic system (G-IT2FLS). The G-IT2FLS aims at exploiting the advantages of the two constituent models to the maximum. Yet, the combination between the IT2FLS and grey model require less burden on computational to design a robust hybrid forecasting model. It was significantly improvised and enhanced through parameter identification, model initialization and structure of the model.