Sigma knowledge engineering system is an system for developing, viewing and debugging theories in first order logic. It works with Knowledge Interchange Format (KIF) and is optimized for the Suggested Upper Merged Ontology (SUMO) www.ontologyportal.org . Sigma has moved to github.com/ontologyportal/sigmakee

Features

  • natural language generation
  • theorem proving
  • ontology browsing

Project Samples

sample ontology browser page

Project Activity

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Categories

Artificial Intelligence

License

GNU General Public License version 2.0 (GPLv2)

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Sigma Web Site

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  • nathanfernandez Posted 2013-06-01
    Very useful. Thanks.
    1 user found this review helpful.
  • sagaskoog Posted 2012-01-06
    Nice tool!
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Additional Project Details

Operating Systems

Linux, Windows

Languages

English, German, Hindi, Italian

Intended Audience

Developers, Science/Research

User Interface

Web-based

Programming Language

C++, Java

Related Categories

C++ Artificial Intelligence Software, Java Artificial Intelligence Software

Registered

2004-02-18
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