Noisy Time Series Prediction using a Recurrent Neural Network and Grammatical Inference (2001)
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| Venue: | Machine Learning |
| Citations: | 40 - 0 self |
BibTeX
@INPROCEEDINGS{Giles01noisytime,
author = {C. Lee Giles and Steve Lawrence and A. C. Tsoi},
title = {Noisy Time Series Prediction using a Recurrent Neural Network and Grammatical Inference},
booktitle = {Machine Learning},
year = {2001},
pages = {161--183}
}
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Abstract
Financial forecasting is an example of a signal processing problem which is challenging due to small sample sizes, high noise, non-stationarity, and non-linearity. Neural networks have been very successful in a number of signal processing applications. We discuss fundamental limitations and inherent difficulties when using neural networks for the processing of high noise, small sample size signals. We introduce a new intelligent signal processing method which addresses the difficulties. The method proposed uses conversion into a symbolic representation with a selforganizing map, and grammatical inference with recurrent neural networks. We apply the method to the prediction of daily foreign exchange rates, addressing difficulties with non-stationarity, overfitting, and unequal a priori class probabilities, and we find significant predictability in comprehensive experiments covering 5 different foreign exchange rates. The method correctly predicts the direction of change for th...







