Ruby-WordNet

Description

This library is a Ruby interface to WordNet®. WordNet® is an online lexical reference system whose design is inspired by current psycholinguistic theories of human lexical memory. English nouns, verbs, adjectives and adverbs are organized into synonym sets, each representing one underlying lexical concept. Different relations link the synonym sets.

This library uses WordNet-SQL, which is a conversion of the lexicon flatfiles into a relational database format. You can either install the 'wordnet-defaultdb' gem, which packages up the SQLite3 version of WordNet-SQL, or install your own and point the lexicon at it by passing Sequel connection parameters to the constructor.

Usage

There are three major parts to this library:

WordNet::Lexicon

the interface to the dictionary, used to connect to the database and look up Words and Synsets.

WordNet::Word

the English word entries in the Lexicon that are mapped to Synsets via one or more Senses.

WordNet::Synset

the main artifact of WordNet: a “synonym set”. These are connected to one or more Words through a Sense, and are connected to each other via SemanticLinks.

The other object classes exist mostly as a way of representing relationships between the main three:

WordNet::Sense

represents a link between one or more Words and one or more Synsets for one meaning of the word.

WordNet::SemanticLink

represents a link between Synsets

WordNet::LexicalLink

represents a link between Words in Synsets

WordNet::Morph

an interface to a lookup table of irregular word forms mapped to their base form (lemma)

The last class (WordNet::Model) is the abstract superclass for all the others, and inherits most of its functionality from Sequel::Model, the ORM layer of the Sequel toolkit. It's mostly just a container for the database connection, with some convenience methods to allow the database connection to be deferred until runtime instead of when the library loads.

The library also comes with the beginnings of support for the SUMO-WordNet mapping:

WordNet::SumoTerm

Suggested Upper Merged Ontology terms, with associations back to related Synsets.

This is only supported by a subset of the WordNetSQL databases, and there is a fair amount of work left to be done before it's really functional. Drop me a note if you're interested in working on this.

Requirements

  • Ruby >= 1.9.3

  • Sequel >= 3.38.0

Authors

  • Michael Granger <ged@FaerieMUD.org>

License

Copyright © 2002-2012, The FaerieMUD Consortium All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  • Neither the name of the author/s, nor the names of the project's contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.