GraphIK

Cogui, developed since 2005 and written in Java, is a graphical editor for building and checking knowledge bases. Currently, it is devoted to conceptual graphs but it also imports/exports RDFS documents. For reasoning tasks, it relies on the Cogitant engine.

Cogitant, evolving since 15 years and written in C++, is a platform for building conceptual graph applications. This platform is a faithful implementation of the theoretical models developed in our team (see the Graph-based Knowledge Representation book). Cogitant is jointly maintained with David Genest at LERIA.