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| Multistep-Ahead Independent Prediction of Nonlinear Time Series Based on Independent Model |
YANG Zhenming1,YUE Jiguang1,WANG Xiaobao2,XIAO Yunshi1 |
| (1. College of Electronic and Information Engineering, Tongji University, Shanghai 201804, China;2. Shanghai Shentong Rail Transit Research and Consultancy Co., Ltd., Shanghai 201103, China) |
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Abstract A multistep-ahead independent prediction approach of nonlinear time series was proposed. The step-by-step recurrent approach and the independent approach were compared, and the influence of accumulative error on the performance of multistep-ahead prediction was analyzed. The recurrent neural network (RNN) was used to realize the independent prediction approach, and the predictive model of urban rail transit is built, trained and tested by MATLAB. The predictive results showed that the error of independent prediction was smaller than that of step-by-step recurrent approach. The advantages and disadvantages of each approach were analyzed.
Key words：
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Received: 14 December 2012
Published: 30 October 2013
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