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A recurrent support vector regression model in rainfall forecasting

✍ Scribed by Ping-Feng Pai; Wei-Chiang Hong

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
294 KB
Volume
21
Category
Article
ISSN
0885-6087

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✦ Synopsis

Abstract

To minimize potential loss of life and property caused by rainfall during typhoon seasons, precise rainfall forecasts have been one of the key subjects in hydrological research. However, rainfall forecast is made difficult by some very complicated and unforeseen physical factors associated with rainfall. Recently, support vector regression (SVR) models and recurrent SVR (RSVR) models have been successfully employed to solve time‐series problems in some fields. Nevertheless, the use of RSVR models in rainfall forecasting has not been investigated widely. This study attempts to improve the forecasting accuracy of rainfall by taking advantage of the unique strength of the SVR model, genetic algorithms, and the recurrent network architecture. The performance of genetic algorithms with different mutation rates and crossover rates in SVR parameter selection is examined. Simulation results identify the RSVR with genetic algorithms model as being an effective means of forecasting rainfall amount. Copyright Β© 2006 John Wiley & Sons, Ltd.

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