ConceptNet

ConceptNet is a freely-available semantic network that was designed to assist computers to understand the meanings of words used by people. In 1999, it originated from the crowdsourcing project called Open Mind Common Sense, which was launched at the MIT Media Lab. It became part of the Commonsense Computing Initiative, which is a collaboration between MIT and other worldwide labs and companies. Catherine Havasi, the CEO of Luminoso, founded The Commonsense Computing Initiative.

Since then, it has been expanded to include knowledge from other crowdsourced resources, expert-created resources, and games with a purpose. The development of ConceptNet occurs as an open-source project of Luminoso Technologies, Inc., while the code responsible for building and powering ConceptNet is available on GitHub. Robyn Speer, a Luminoso co-founder, alongside contributions from other people lead the development of ConceptNet 5.

An illustration of ConceptNet, from conceptnet.io