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A comparative study on effect of news sentiment on stock price prediction with deep learning architecture

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  • Keshab Raj Dahal
  • Nawa Raj Pokhrel
  • Santosh Gaire
  • Sharad Mahatara
  • Rajendra P Joshi
  • Ankrit Gupta
  • Huta R Banjade
  • Jeorge Joshi

Abstract

The accelerated progress in artificial intelligence encourages sophisticated deep learning methods in predicting stock prices. In the meantime, easy accessibility of the stock market in the palm of one’s hand has made its behavior more fuzzy, volatile, and complex than ever. The world is looking at an accurate and reliable model that uses text and numerical data which better represents the market’s highly volatile and non-linear behavior in a broader spectrum. A research gap exists in accurately predicting a target stock’s closing price utilizing the combined numerical and text data. This study uses long short-term memory (LSTM) and gated recurrent unit (GRU) to predict the stock price using stock features alone and incorporating financial news data in conjunction with stock features. The comparative study carried out under identical conditions dispassionately evaluates the importance of incorporating financial news in stock price prediction. Our experiment concludes that incorporating financial news data produces better prediction accuracy than using the stock fundamental features alone. The performances of the model architecture are compared using the standard assessment metrics —Root Mean Square Error (RMSE), Mean Absolute Percentage Error (MAPE), and Correlation Coefficient (R). Furthermore, statistical tests are conducted to further verify the models’ robustness and reliability.

Suggested Citation

  • Keshab Raj Dahal & Nawa Raj Pokhrel & Santosh Gaire & Sharad Mahatara & Rajendra P Joshi & Ankrit Gupta & Huta R Banjade & Jeorge Joshi, 2023. "A comparative study on effect of news sentiment on stock price prediction with deep learning architecture," PLOS ONE, Public Library of Science, vol. 18(4), pages 1-19, April.
    • Handle: RePEc:plo:pone00:0284695
    DOI: 10.1371/journal.pone.0284695
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    References listed on IDEAS

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    2. Abel Díaz Berenguer & Yifei Da & Matías Nicolás Bossa & Meshia Cédric Oveneke & Hichem Sahli, 2024. "Causality-driven multivariate stock movement forecasting," PLOS ONE, Public Library of Science, vol. 19(4), pages 1-41, April.

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