9781586036850 | Ios Pr Inc, October 1, 2006, cover price $175.00 | About this edition: Researchers in areas such as artificial intelligence, formal and computational linguistics, biomedical informatics, conceptual modeling, knowledge engineering and information retrieval have come to realize that a solid foundation for their research calls for serious work in ontology, understood as a general theory of the types of entities and relations that make up their respective domains of inquiry.

9780826489944 | Continuum Intl Pub Group, May 8, 2007, cover price $130.00 | About this edition: This book demonstrates how corpus-based research can advance the understanding of linguistic phenomena in a given language.

9780826444738 | Continuum Intl Pub Group, May 1, 2009, cover price $49.95 | About this edition: This book demonstrates how corpus-based research can advance the understanding of linguistic phenomena in a given language.

9780262561167 | Cdr edition (Bradford Books, June 5, 1998), cover price $42.00 | About this edition: in cooperation with the Cognitive Science Laboratory at Princeton University WordNet is an on-line lexical reference system whose design is inspired by current psycholinguistic theories of human lexical memory; version 1.

9780262061971 | Bradford Books, May 15, 1998, cover price $73.00 | About this edition: with a preface by George Miller WordNet, an electronic lexical database, is considered to be the most important resource available to researchers in computational linguistics, text analysis, and many related areas.