Journal
APPLIED SOFT COMPUTING
Volume 91, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.asoc.2020.106205
Keywords
Stock trend prediction; Deep neural network; Knowledge graph
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Funding
- National Natural Science Foundation of China [U1811462]
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Many studies have been carried out on stock price trend prediction, but most of them focused on the public market data and did not utilize the trading behaviors owing to the unavailability of real transaction records data. In fact, trading behaviors can better reflect the market movements, and the fusion of trading information and market information can further improve the prediction accuracy. In this paper, we propose a deep neural network model using the desensitized transaction records and public market information to predict stock price trend. Considering the correlation between stocks, our method utilizes the knowledge graph and graph embeddings techniques to select the relevant stocks of the target for constructing the market and trading information. Given the considerable number of investors and the complexity of transaction records data, the investors are clustered to reduce the dimensions of the trading feature matrices, and then the matrices are fed into the convolutional neural network to unearth the investment patterns. Eventually, the attention-based bidirectional long short-term memory network can predict the stock price trends for financial decision support. The experiments on the price movement direction and trend prediction show that our method achieves the best performance in comparison with other prediction baselines. (C) 2020 Elsevier B.V. All rights reserved.
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