Topic map conversion of OpenCyc

OpenCyc is a large general knowledge base and commonsense reasoning engine. OpenCyc is open source version of the Cyc. Topic map conversion of the OpenCyc is based on RDF conversion of the OpenCyc provided by Stephen L. Reed for his Texai project. Topic map conversion was created with Wandora's RDF import feature following light manual processing.

Download

There are two versions of the OpenCyc topic map available:

• OpenCyc Wandora project file (14.6MB) is targeted for Wandora users. Wandora requires at least 1G of memory to open the OpenCyc project file successfully.
• OpenCyc XTM dump (zipped 14.8MB, uncompressed 250 MB) is targeted for all topic map applications capable to import XTM format.

Metrics

• Number of topics 120410
• Number of associations 424064
• Number of topic base names 120409
• Number of subject identifiers 120415
• Number of subject locators 0
• Number of occurrences 244173
• Number of distinct topic classes 1
• Number of distinct types of associations 73
• Number of distinct roles in associations 4
• Number of distinct players in associations 116212

Limitations

• The topic map conversion contains only OpenCyc's binary relations.
• Non-atomic terms are not included.

License

GNU General Public License (GPL)