Download PowerLoom®
License
Since 2005, PowerLoom® is available free-of-charge under a triple
disjunctive open-source licensing scheme that allows you to pick the
Mozilla
Public License v. 1.1 (MPL), the GNU
General Public License v. 2.0 (GPL) or the the GNU
Lesser Public License v. 2.1 (LGPL) to fit your needs. This
scheme is similar to what's used for the Mozilla web browser and
should give people maximum flexibility to use PowerLoom even for
commercial development while still retaining the advantages of
open-source licensing.
Contents
Download PowerLoom
Don't forget to sign up for
our mailing lists for PowerLoom-related discussions and
announcements!
The latest PowerLoom release contains
- complete STELLA sources of PowerLoom and PowerLoom Extensions
- two alternative Common Lisp translations (CLOS or struct objects)
- C++ translation
- Java translation, compiled class files and
powerloom.jar
JAR file
- The PowerLoom manual (in the
sources/logic/doc/ directory).
- A complete distribution of the
STELLA programming language.
Don't follow this link!
Stable PowerLoom releases:
Current PowerLoom snapshot:
Snapshots are built from the latest sources in our CVS repository.
They run through a set of tests but are not as thoroughly tested as
regular releases - use at your own risk.
Release Notes
Release notes summarize user-visible
changes for each PowerLoom release. More detailed code-level change
documentation can be found in the files
.../sources/powerloom/ChangeLog and
.../sources/stella/ChangeLog that are shipped with each
release.
Knowledge Bases
This is a collection of PowerLoom knowledge bases that are available for inspection and use.
- aircraft.plm US Military Aircraft. An example knowledge base designed to show off Ontosaurus and the PowerLoom concept classifier. A translation of a Loom knowledge base.
- business.plm The example knowledge base from the PowerLoom tutorial.
- A collection of seismology-related knowledge bases developed as a proof-of-concept for the Southern California Earthquake Center. The module definitions are separate from the PowerLoom files. The faults and models ontologies depend on the seismology ontology. These also use the units and dimensions KB.
Additional Tools
Ontosaurus for PowerLoom
Ontosaurus is a web-based browser for PowerLoom. Currently we only have a old pre-release packaged, but plan to make the current versions available in the future.
Protégé Frames Language Exporter
We have implemented a PowerLoom exporter for the Protégé editor from Stanford University. It can write ontologies using the Protégé frame language in PowerLoom, either fully native or with support for the system concepts from Protégé. The plugin is available as a zip file and should be expanded in the plugins directory of the Protégé installation. The system concepts PowerLoom file is only needed if the export does not use native PowerLoom mode.
Contributions
Below is a list of contributions from friends and outside PowerLoom
users. They are unreviewed and provided as-is - so, just like
everything else, use at your own risk.
PowerLoom is a registered trademark of the University of Southern
California.
Last modified:
Nov 22, 2007