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Abstract

Fuzzy time series is widely used in forecasting time series data in linguistic forms. Implementing the intuitionistic fuzzy sets (IFS) in fuzzy time series can better handle uncertainties and vagueness in the time series data. However, the time series data always fluctuate randomly and cause drastic changes. In this study, the 4253HT smoother is integrated with the intuitionistic fuzzy time series forecasting model to improve the forecasting accuracy. The proposed model is implemented in predicting the Malaysian crude palm oil prices. The data are firstly smoothed, and followed with the fuzzification process. Next are the transformation of fuzzy sets into IFS and the de-i-fuzzification via equal distribution of hesitancy. The forecasted data are calculated based on the defuzzified values considering the new membership degrees of the IFS after de-i-fuzzification. The results show that the integrated model produces a better forecasting performance compared to the common intuitionistic fuzzy time series forecasting model. In the future, the integration of the data smoothing should be considered before the forecasting of data using fuzzy time series could be performed.

Keywords

Crude Palm Oil Prices Fuzzy Time Series Intuitionistic Fuzzy Set Smoothing 4253HT Smoother

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How to Cite
Alam, N. M. F., Ramli, N., Mohamed, A. S. T., & Adnan, N. I. M. (2022). Integration of 4253HT Smoother with Intuitionistic Fuzzy Time Series Forecasting Model. Pakistan Journal of Statistics and Operation Research, 18(4), 929-941. https://doi.org/10.18187/pjsor.v18i4.4212
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