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ConceptNet aims to give computers access to common-sense knowledge, the kind of information that ordinary people know but usually leave unstated.

This Python package contains a toolset for building the ConceptNet 5 knowledge graph, possibly with your own custom data, and it serves the HTML interface and JSON Web API for it.

You don't need this package to simply access ConceptNet 5; see http://conceptnet.io for more information and a browsable Web interface.

Further documentation is available on the Wiki: https://github.com/commonsense/conceptnet5/wiki

Licensing and attribution appear in LICENSE.txt and DATA-CREDITS.txt.

Discussion groups

If you're interested in using ConceptNet, please join the conceptnet-users Google group, for questions and occasional announcements: http://groups.google.com/group/conceptnet-users?hl=en

For real-time discussion, ConceptNet also has a chat channel on Gitter: https://gitter.im/commonsense/conceptnet5

System requirements

To be able to run all steps of the ConceptNet build process, you'll need:

  • Python 3.4 or later
  • A Python environment where NumPy and SciPy can be installed, or already are installed
  • Standard GNU command-line tools such as sort and uniq
  • libhdf5 for reading and writing matrices of data
  • PostgreSQL 9.5 or later, with a database named conceptnet5 that you can write to
  • The CONCEPTNET_DB_USER, CONCEPTNET_DB_PASSWORD, and optionally CONCEPTNET_DB_HOSTNAME environment variables should be set so that you can connect to the database

These can be set up automatically within a container, using Docker Compose; see the Docker instructions. We highly recommend using Docker Compose if you want to serve the Web API locally.

Installing and building ConceptNet

To install this package, run:

python3 setup.py develop

To build all the data from raw data, run:

snakemake -j 8 --resources 'ram=16' all

(-j 8 says to run 8 processes of Snakemake in parallel, and ram=16 constraints the processes that run simultaneously so that they should require around 16 GB of RAM.)

To build or download only the data necessary to run the Web service:

snakemake -j 8 webdata

To reproduce an evaluation that shows the strong performance of the ConceptNet Numberbatch word embeddings:

snakemake evaluation

To start over when something goes wrong or when the code has changed:

snakemake clean