About WordNet.PT

WordNet.PT is a linguistic knowledge database for Portuguese, developed at the Centre of Linguistics of the University of Lisbon by CLG-Group for the Computation of Lexical and Grammatical Knowledge, under the supervision and scientific coordination of Palmira Marrafa and benefitting from the scientific support of Piek Vossen, coordinator of EuroWordNet, as well as of Christiane Fellbaum, responsible, with George Miller, for the Princeton WordNet, the mother of all wordnets.

The database, which can be used in several domains in Computational Linguistics and Language Engineering, such as machine translation, search engines, information extraction, applications for teaching Portuguese, among others, is organized according to the general EuroWordNet framework, a multilingual database integrating wordnets for several European languages.

Wordnets are lexical-conceptual networks organized around a set of relations which have been shown by research to correspond to the mental organization of lexical meaning.

The meaning of each lexical unit is deduced from its relative position in the network, determined by the set of relations specified, glosses and tags constituting additional information.

The basic unit in a wordnet is the concept. Each concept corresponds to a node in the network and is represented by the set of lexical expressions - atomic or complex - corresponding to it.

The present WordNet.PT version has about 19000 lexical expressions, from different semantic fields. The fragment made available here includes expressions from subdomains such as art, clothing, geography, health, institutions, living entities and transportation.