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Machine Reading Comprehension of News on Stock Price Changes

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Book cover Advances in Artificial Intelligence (JSAI 2021)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 1423))

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Abstract

One of the reasons why stock prices fluctuate greatly is because of IR announcements, which are information for investors, and news reports on events that are closely related to the companies. When a stock price change occurs, news sites for investors may report the stock price change and the reason for the change. However, such articles report only a certain portion of overall events that are closely related to reasons for stock price changes. Thus, in order to provide investors with information on those reasons for stock price changes, it is necessary to develop a system to collect information on events that could be closely related to the stock price changes of certain companies from the Internet. As the first step towards developing such a system, this paper takes an approach of employing a BERT-based machine reading comprehension model, which extracts causes of stock price changes from news reports on stock price changes. Those extracted reasons are intended to be further used to train a system to collect information on events that could be closely related to the stock price changes of certain companies from the Internet.

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Notes

  1. 1.

    When evaluated with the SQuAD [14] (https://rajpurkar.github.io/SQuAD-explorer/).

  2. 2.

    https://minkabu.jp/.

  3. 3.

    Delivered from October 30th to December 3rd, 2020.

  4. 4.

    As an alternative, we also examine the approach of using a single general question sentence such as below: However, this approach does not perform well in the evaluation compared with the case (a) in this section.

  5. 5.

    https://github.com/google-research/bert.

  6. 6.

    Trained with 104 languages, available from https://github.com/google-research/bert/blob/master/multilingual.md.

  7. 7.

    http://taku910.github.io/mecab/ (in Japanese).

  8. 8.

    https://github.com/neologd/mecab-ipadic-neologd.

  9. 9.

    run_squad.py, with the number of epochs as 2, batch size as 8, and learning rate as 0.00003.

  10. 10.

    http://www.cl.ecei.tohoku.ac.jp/rcqa/ (in Japanese).

  11. 11.

    https://sites.google.com/view/fiqa/home.

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Correspondence to Takehito Utsuro .

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Suzuki, S., Tsutsumi, G., Utsuro, T. (2022). Machine Reading Comprehension of News on Stock Price Changes. In: Takama, Y., et al. Advances in Artificial Intelligence. JSAI 2021. Advances in Intelligent Systems and Computing, vol 1423. Springer, Cham. https://doi.org/10.1007/978-3-030-96451-1_1

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