Ontologies for Loom®
Useful ontologies and some example Loom® knowledge bases are provided here.
Some documentation on this page is available in PostScript®
or PDF format. PostScript will require a PostScript compatible printer
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- Example Knowledge Bases
The following ontologies are Loom versions of upper-level ontologies
that may be of interest to the Loom user community.
- SUMO Ontology
- Thanks to David Flater
at NIST, a Loom 4.0
translation of a subset of the Suggested Upper Merged
Ontology is now available. For more information, please see
- CYC Sensus
- The CYC-Sensus context contains a Loom
translation of the HPKB upper ontology prepared
by the University of Southern California's Information Sciences Institute and Cycorp, Inc. This product resulted from
an alignment between the SENSUS upper model and the Cyc Upper Ontology.
The reference version was created in MELD and translated automatically
Copyright © 1997 Cycorp, Inc. All rights reserved.
Although this material is available for public use,
it is legally not 'Public Domain.' Therefore, please
acknowledge Cycorp, 3721 Executive Center Dr., Austin,
TX 78731 in any use or citation of this material, which
includes renamings and other logically equivalent
reformulations of the material in any natural or formal
language. The latest version of the Cyc Upper Ontology
is available for browsing or downloading at www.cyc.com
Example Knowledge Bases
The following are example knowledge bases in Loom format.
- Aircraft KB
- The Aircraft Knowledge Base was
initially designed to demonstrate features of the Loom language for use
in the Ontosaurus
browser. It makes extensive use of relation hierarchies and
classification of types of aircraft. This KB should work in Loom 3.0
and Loom 4.0. This KB cannot be loaded into the same Loom image as
the units version.
- Aircraft KB with Units
- The Aircraft Knowledge Base with
Units is a modification of the Aircraft
Knowledge Base which adds units and
dimensions to the quantities such as length, range, weight,
etc. Since it uses units, it will only work properly in Loom
4.0. This KB cannot be loaded into the same Loom image as the
version without units.
- Naval KB
- The Naval Knowledge Base contains
information from open sources about naval vessels for many countries
from the early 1990s. The models make extensive use of enumerated sets
and ordered sets to define concepts, as well as partitions. This uses
units and dimensions, so it requires Loom 4.0.
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