Volume 38, Issue 2 e12633
ORIGINAL ARTICLE

A hybrid model for financial time-series forecasting based on mixed methodologies

Zhidan Luo

Zhidan Luo

School of Statistics, University of International Business and Economics, Beijing, China

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Wei Guo

Wei Guo

School of Statistics, University of International Business and Economics, Beijing, China

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Qingfu Liu

Corresponding Author

Qingfu Liu

Institute for Financial Studies, Fudan University, Shanghai, China

Correspondence

Qingfu Liu, Institute for Financial Studies, Fudan University, Shanghai, China.

Email: [email protected]

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Zhengjun Zhang

Zhengjun Zhang

Department of Statistics, University of Wisconsin-Madison, Madison, Wisconsin, USA

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First published: 02 September 2020
Citations: 27

Funding information: National Natural Science Foundation of China, Grant/Award Numbers: 61973084, 71871066, 71991471; NSF-DMS, Grant/Award Number: 2012298; the Shanghai Science and Technology Innovation Action Plan Project, Grant/Award Number: 19511101700

Abstract

This paper proposes a hybrid model that combines ensemble empirical mode decomposition (EEMD), autoregressive integrated moving average (ARIMA), and Taylor expansion using a tracking differentiator to forecast financial time series. Specifically, the financial time series is decomposed by EEMD into some subseries. Then, the linear portion of each subseries is forecasted by the linear ARIMA model, while the nonlinear portion is predicted by the nonlinear Taylor expansion model. The forecasting results of the linear and nonlinear models are combined into the predicted result of each subseries. The final prediction result is obtained by combining the prediction values of all the subseries. The empirical results with real financial time series data demonstrate that this new hybrid approach outperforms the benchmark hybrid models considered in this paper.

CONFLICT OF INTEREST

The authors declare that this paper does not have any conflicts of interest.

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