Time Series Forecasting Using LSTM Networks: A Symbolic Approach

Steven Elsworth; Stefan Güttel

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arXiv · 2003.05672

Time Series Forecasting Using LSTM Networks: A Symbolic Approach

Steven Elsworth·Stefan Güttel

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Abstract

Machine learning methods trained on raw numerical time series data exhibit fundamental limitations such as a high sensitivity to the hyper parameters and even to the initialization of random weights. A combination of a recurrent neural network with a dimension-reducing symbolic representation is proposed and applied for the purpose of time series forecasting. It is shown that the symbolic representation can help to alleviate some of the aforementioned problems and, in addition, might allow for faster training without sacrificing the forecast performance.

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Steven Elsworth, Stefan Güttel. 2020-03-12. Time Series Forecasting Using LSTM Networks: A Symbolic Approach. https://arxiv.org/abs/2003.05672

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