Type 2 Fuzzy Inference-Based Time Series Model

Nur Fazliana, Rahim and Mahmod, Othman and Rajalingam, Sokkalingam and Evizal, Abdul Kadir (2019) Type 2 Fuzzy Inference-Based Time Series Model. Symmetry, 11 (1340). pp. 1-13. ISSN 2073-8994

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Fuzzy techniques have been suggested as useful method for forecasting performance. However, its dependency on experts’ knowledge causes difficulties in information extraction and data collection. Therefore, to overcome the difficulties, this research proposed a new type 2 fuzzy time series (T2FTS) forecasting model. The T2FTS model was used to exploit more information in time series forecasting. The concepts of sliding window method (SWM) and fuzzy rule-based systems (FRBS) were incorporated in the utilization of T2FTS to obtain forecasting values. A sliding window method was proposed to find a proper and systematic measurement for predicting the number of class intervals. Furthermore, the weighted subsethood-based algorithm was applied in developing fuzzy IF–THEN rules, where it was later used to perform forecasting. This approach provides inferences based on how people think and make judgments. In this research, the data sets from previous studies of crude palm oil prices were used to further analyze and validate the proposed model. With suitable class intervals and fuzzy rules generated, the forecasting values obtained were more precise and closer to the actual values. The findings of this paper proved that the proposed forecasting method could be used as an alternative for improved forecasting of sustainable crude palm oil prices.

Item Type: Article
Uncontrolled Keywords: fuzzy time series; reasoning-based model; sliding window method; type 2 fuzzy time series; weighted subsethood-based algorithm, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, , research, Universiti Malaysia Sarawak.
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
Divisions: Academic Faculties, Institutes and Centres > Centre for Pre-University Studies
Faculties, Institutes, Centres > Centre for Pre-University Studies
Academic Faculties, Institutes and Centres > Centre for Pre-University Studies
Depositing User: Gani
Date Deposited: 20 Nov 2019 05:02
Last Modified: 28 Apr 2021 22:09
URI: http://ir.unimas.my/id/eprint/27988

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