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Streamflow forecasting using functional-coefficient time series model with periodic variation
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DOI：10.1016/j.jhydrol.2009.01.029.png)
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Functional-coefficient models with a periodic component are proposed for short-term streamflow forecasting. Traditionally, analyses are conducted for anomaly data after removing an annual pattern or detrending the data after data differencing. Alternatively, periodic models establish separate models for individual seasons. However, the setting of periodic models cannot guarantee the smoothness in model coefficients which is necessary when the time scale is small (for example, daily). In this paper we consider the use of functional-coefficient models with a periodic component, which extend the periodic regression for short-term forecasting. Unlike the traditional functional-coefficient models which extend the threshold regression model, our functional-coefficient model with a periodic component enjoys an invariance property under data differencing. As case studies, the models are applied to Australian streamflows in three typical climate conditions and Ying Luo, Gorge (YLX) in Hei River of North-Western China. Crown Copyright (c) 2009 Published by Elsevier B.V. All rights reserved.
Keyword:
Forecasting
Functional-coefficient regression model
Non-parametric functional-coefficient
regression model
Periodic regressive model
Periodicity
Semi-parametric regression model
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6.3
论文数:
2.4W
被引数:
9.8W
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