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A model fusion method based on multi-source heterogeneous data for stock trading signal prediction

  • Soft computing in decision making and in modeling in economics
  • Published:
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Abstract

In the prediction of turning points (TPs) of time series, the improved model of integrating piecewise linear representation and weighted support vector machine (IPLR-WSVM) has achieved good performance. However, due to the single data source and the limitation of algorithm, IPLR-WSVM has encountered challenges in profitability. In this paper, a model fusion method based on multi-source heterogeneous data and different learning algorithms is proposed for the prediction of TPs (MF-MSHD). Multi-source heterogeneous data include weighted unstructured and structured information with different granularities. RF, WSVM, BPNN, GBDT, and LSTM are selected to be the learning algorithms. The differences among meta-models are constructed by different inputs and algorithms as much as possible, and a model fusion rule is designed to determine the final TPs. Moreover, the TPs are generated based on the characteristics of individual stock. For sentiment analysis, a more accurate sentiment dictionary of stock market comments is established. Specifically, the fine-grained data is introduced to jointly determine the accurate trading moment. The prediction level of the proposal improves the accuracy and profitability, and also outperforms the composite indexes. Experimental results show that the profit rate of randomly selected stocks in MF-MSHD reaches 0.5172, while the highest value is 0.2841 in single meta-model and 0.0992 in buy and hold strategy, respectively. The other indicators including the accuracy are also modified. Compared with the increases of 0.1648, 0.4051, and 0.3397 in Shanghai Composite Index, Shenzhen Composite Index, and CSI 300 Index, MF-MSHD shows higher profitability in stock trading signal prediction.

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Data availability

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Funding

This work is supported by the National Talents Foundation [grant number WQ20141100]; and the Beijing Municipal Natural Science Foundation [grant numbers L191020, 3192028].

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Authors and Affiliations

  1. School of Automation, Beijing Institute of Technology, Beijing, 100081, China

    Xi Chen, Kaoru Hirota, Yaping Dai & Zhiyang Jia

  2. College of Physics and Energy, Fujian Normal University, Fuzhou, 350117, China

    Xi Chen

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  1. Xi Chen
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  2. Kaoru Hirota
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  3. Yaping Dai
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  4. Zhiyang Jia
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Contributions

Chen conceptualized and designed the experiments; Chen and Hirota analyzed and interpreted the data; Chen drafted the manuscript; Hirota, Dai, and Jia revised the manuscript critically for important intellectual content; Chen, Hirota, Dai, and Jia gave approval of the version of the manuscript to be published.

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Correspondence to Xi Chen.

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Chen, X., Hirota, K., Dai, Y. et al. A model fusion method based on multi-source heterogeneous data for stock trading signal prediction. Soft Comput 27, 6587–6611 (2023). https://doi.org/10.1007/s00500-022-07714-4

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