A novel seasonal fuzzy time series method

Alpaslan, Faruk and Cagcag, Ozge and Aladag, C. H. and Yolcu, U. and Egrioglu, E. (2012) A novel seasonal fuzzy time series method. Hacettepe Journal of Mathematics and Statistics, 41 (3). pp. 375-385. ISSN 1303-5010

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Fuzzy time series forecasting methods, which have been widely studied in recent years, do not require constraints as found in conventional approaches. On the other hand, most of the time series encountered in real life should be considered as fuzzy time series due to the vagueness that they contain. Although numerous methods have been proposed for the analysis of time series in the literature, these methods fail to forecast seasonal fuzzy time series. The limited number of seasonal fuzzy time series methods consider only the fuzzy set having the highest membership value, rather than the membership value of observations belonging to each fuzzy set. This is contrary to fuzzy set theory and causes information loss, thus affecting forecasting performance negatively. In this study, a new seasonal fuzzy time series method which considers the membership value of the observations belonging to each set in both forecasting fuzzy relations and in the defuzzification step is proposed. The proposed method is applied to a real seasonal time series.

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Journal Article
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Hacettepe Journal of Mathematics and Statistics
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17 Dec 2019 09:15
Last Modified:
22 Nov 2022 08:31