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Market Reporter



Market Reporter automatically generates short comments that describe time series data of stock prices, FX rates, etc. This is an implementation of Murakami et al. (ACL 2017) [bib] [paper] and Aoki et al. (INLG 2018) [bib] [paper] [poster].

Table of Contents

  1. Requirements
    1. Architecture
    2. Resources
    3. S3
    4. Docker
    5. Pipenv
    6. PostgreSQL
  2. Usage
    1. Training
    2. Prediction
  3. Web Interface
  4. Test
  5. License and References
  6. Copyright and Acknowledgment



The architecture is illustrated below.

Credit of the icons


Amazon S3

This tool stores data to Amazon S3. Ask the manager to give you AmazonS3FullAccess and issue a credential file. For details, please read AWS Identity and Access Management.


Install Docker and Docker Compose. Edit envs/docker-compose.yaml according to your environment. Then, launch containers by docker-compose.

# Install Docker
sudo apt-get update
sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
curl -fsSL | sudo apt-key add -
sudo add-apt-repository \
    "deb [arch=amd64] \
    $(lsb_release -cs) \
sudo apt-get update
sudo apt-get install -y \
    docker-ce \
    docker-ce-cli \

# Install Docker Compose
sudo curl -L "$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

# Start Docker and log in
cd envs
sudo service docker start
sudo docker-compose up -d
sudo exec --user reporter -it CONTAINER /bin/bash


We recommend to use pipenv to make a Python environment for this project.

brew install pipenv  # Linuxbrew and Homebrew
pipenv install --dev
pipenv shell


Suppose you have a database named master on your local machine. Then, edit config.toml as the following.

+ uri = 'postgresql:///master'



Create config.toml based on example.toml or murakami-et-al-2017.example.toml.

Execute the following command for the training of model. When you use GPU (CPU), you specify cuda:n(cpu) for --device option, where n is the device index to use.

python -m reporter --device 'cuda:0'

After the program finishes, it saves three files (reporter.log, reporter.model, and reporter.vocab) to config.output_dir/reporter-DATETIME, where config.output_dir is a variable set in config.toml and DATETIME is the timestamp of the starting time.


Prediction submodule generates a single comment of a financial instrument at specified time by loading a trained model.

# -r, --ric: Reuters Instrument Code (e.g. '.N225' for Nikkei Stock Average)
# -t, --time: timestamp in '%Y-%m-%d %H:%M:%S%z' format
# -o, --output: directory that contains 'reporter.model' and 'reporter.vocab'
python -m reporter.predict \
    -r '.N225' \
    -t '2018-10-03 09:03:00+0900' \
    -o output/reporter-2018-10-07-18-47-41

Web Interface

Execute the following command and access http://localhost:5000/ in a web browser.

make  # for the first time
python -m reporter.webapp

When you launch it on a server, execute the following command instead.

nohup uwsgi --ini uwsgi.ini &

You can see a page as the following picture.

The web application can be used for evaluation. Along with the generated sentences, it also shows the movements of prices used in generation.



License and References

Market Reporter is available under different licensing options:

Commercial licenses are appropriate for development of proprietary/commercial software where you do not want to share any source code with third parties or otherwise cannot comply with the terms of the GNU. For details, please contact us at

This software uses a technique applied for patent (patent application number 2017001583).

When you write a paper using this software, please cite either or both of the followings.

  author = {Murakami, Soichiro
            and Watanabe, Akihiko
            and Miyazawa, Akira
            and Goshima, Keiichi
            and Yanase, Toshihiko
            and Takamura, Hiroya
            and Miyao, Yusuke},
  title = {Learning to Generate Market Comments from Stock Prices},
  booktitle = {Proceedings of the 55th Annual Meeting of
               the Association for Computational Linguistics (Volume 1: Long Papers)},
  year = {2017},
  publisher = {Association for Computational Linguistics},
  pages = {1374--1384},
  location = {Vancouver, Canada},
  doi = {10.18653/v1/P17-1126},
  url = {}

  author = {Aoki, Tatsuya
            and Miyazawa, Akira
            and Ishigaki, Tatsuya
            and Goshima, Keiichi
            and Aoki, Kasumi
            and Kobayashi, Ichiro
            and Takamura, Hiroya
            and Miyao, Yusuke},
  title = {Generating Market Comments Referring to External Resources},
  booktitle = {Proceedings of the 11th International Conference on Natural Language Generation},
  year = {2018},
  publisher = {Association for Computational Linguistics},
  pages = {135--139},
  location = {Tilburg University, The Netherlands},
  url = {}

© 2018 Akira Miyazawa, Tatsuya Aoki, Fumiya Yamamoto, Soichiro Murakami, and Akihiko Watanabe (National Institute of Advanced Industrial Science and Technology; AIST)

This software is based on results obtained from a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO).