Forecasting stock prices with long-short term memory neural network based on attention mechanism
Autoři:
Jiayu Qiu aff001; Bin Wang aff001; Changjun Zhou aff002
Působiště autorů:
Key Laboratory of Advanced Design and Intelligent Computing (Dalian University), Ministry of Education, Dalian, China
aff001; College of Computer Science and Engineering, Dalian Minzu University, Dalian, China
aff002
Vyšlo v časopise:
PLoS ONE 15(1)
Kategorie:
Research Article
doi:
https://doi.org/10.1371/journal.pone.0227222
Souhrn
The stock market is known for its extreme complexity and volatility, and people are always looking for an accurate and effective way to guide stock trading. Long short-term memory (LSTM) neural networks are developed by recurrent neural networks (RNN) and have significant application value in many fields. In addition, LSTM avoids long-term dependence issues due to its unique storage unit structure, and it helps predict financial time series. Based on LSTM and an attention mechanism, a wavelet transform is used to denoise historical stock data, extract and train its features, and establish the prediction model of a stock price. We compared the results with the other three models, including the LSTM model, the LSTM model with wavelet denoising and the gated recurrent unit(GRU) neural network model on S&P 500, DJIA, HSI datasets. Results from experiments on the S&P 500 and DJIA datasets show that the coefficient of determination of the attention-based LSTM model is both higher than 0.94, and the mean square error of our model is both lower than 0.05.
Klíčová slova:
Artificial neural networks – Finance – Mathematical functions – Memory – Recurrent neural networks – Stock markets – Wavelet transforms – Forecasting
Zdroje
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