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MICRA, Inc. is a small corporation in New Jersey primarily concerned with building lexical databases for use in Natural Language Understanding. The President is Patrick J. Cassidy.

The offices are located at:

735 Belvidere Ave.
Plainfield, NJ 07062-2054
Tel: (908)561-3416
e-mail: cassidy@micra.com

Current Efforts: MICRA is hosting the COSMO (COmmon Semantic MOdel) ontology, a public, open foundation ontology that is intended to include all the basic elements ("primitive concept") required to specify the meanings of any more specific concept in any domain. The current version COSMO.owl is in the OWL format, and contains representations of over 10600 owl classes (types) and 1230 owl properties (semantic relations). The work is continuing, and all comments are welcome.

Previous Efforts:
MICRA prepared the electronic version of the 1911 Roget's Thesaurus that is widely available on the internet. MICRA also prepared an electronic version of the 1913 Webster's Unabridged Dictionary which is available as a public domain file for download from the Project Gutenberg web site.

The files named "pgw050**.zip" at that site are the files containing the text of the dictionary, where "**" indicates the letters of the dictionary contained in each file.

The text is marked with special tags and special-character symbols; files explaining the tags and symbols are available here:

The tag definitions
The special-character symbols

A version of the 1913 Webster (the "GNU Collaborative Dictionary of English" or GCIDE) that has been partially supplemented with newer words and word senses (mostly from the WordNet dictionary) is also available, at the GNU website. That version can be serched online using a utility created by Sergey Poznyakoff. The details are available here:

GCIDE online

That supplemented version of the 1913 Webster, maintained at the GNU ftp site, is intended to serve as a general dictionary of the English language, freely available for download. It will contain all definitions that are submitted by individuals with expertise in the relevant fields. The project to maintain the dictionary is strictly a volunteer effort, not funded from any external source, and contributions of time and data are requested from anyone willing to help in this endeavor. Anyone wishing to assist in improving the dictionary should contact Pat Cassidy or Sergey Poznyakoff (see the 'GCIDE online' website above). In addition to definitions of newer words, or newer senses of older words, articles longer than definitions, including review articles on any topic that could be of interest to people, area especially welcome. The supplemented dictionary files and ancillary files will soon be available directly from a GNU site

A version of the original 1913 dictionary and a version of the 1911 Roget's thesaurus which can be searched for specific words can be found at the ARTFL web site.

At the web site of the DICT Development group there is another searchable version of the supplemented dictionary, as well as searchable versions of other dictionaries. At that site there is also a downloadable version of the program that allows the dictionary to be used locally; however, that downloadable version is implemented thus far only for UNIX systems.

Those who are willing to help improve these databases are encouraged to contact Pat Cassidy.