Onto.PT: Automatic Construction of a Lexical Ontology for Portuguese



This ongoing research presents an alternative to the manual creation of lexical resources and proposes an approach towards the automatic construction of a lexical ontology for Portuguese. Textual sources are exploited in order to obtain a lexical network based on terms and, after clustering and mapping, a wordnet-like lexical ontology is created. At the end of the paper, current results are shown.


lexical ontologies, wordnets, automatically, semantic relations


Natural Language Processing

Related Project



5th European Starting AI Researcher Symposium (STAIRS), collocated event of ECAI 2010, Lisbon, Portugal, August 2010

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Year 2018 : 2 citations

 de Paiva, V., Rademaker, A., Real, L., Chalub, F., and de Melo, G. (2018). Openwordnet-pt: Taking stock. In Proceedings of the 5th Natural Language in Computer Science (NLCS), Oxford, UK.

 de Barcelos Silva, A. (2018). O uso de recursos linguísticos para mensurar a semelhança semântica entre frases curtas através de uma abordagem híbrida. Master’s thesis, Universidade do Vale do Rio dos Sinos (UNISINOS).

Year 2017 : 1 citations

 Rodrigues, A. X. C. (2017). Validação de termos de domínio por meio de uma base lexical-semântica difusa. TradTerm – Revista do Centro Interdepartamental de Tradução e Terminologia, 30:71–86.

Year 2016 : 1 citations

 Zilio, L., Wilkens, R., Mllmann, L., Wehrli, E., Cordeiro, S., and Villavicencio, A. (2016). Joining forces for multiword expression identification. In Proceedings of 12th International Conference on Computational Processing of the Portuguese Language (PROPOR 2016), volume 9727 of LNAI, pages 233–238, Tomar, Portugal. Springer.

Year 2015 : 3 citations

 Livy Real and Fabricio Chalub and Valeria de Paiva and Cláudia Freitas and Alexandre Rademaker (2015). Seeing is correcting: curating lexical resources using social interfaces. In Proceedings of the 4th Workshop on Linked Data in Linguistics: Resources and Applications, pages 20–29, Beijing, China. ACL Press.

 Moniz, H., Pompili, A., Batista, F., Trancoso, I., Abad, A., and Amorim, C. (2015). Automatic recognition of prosodic patterns in semantic verbal fluency tests – an animal naming task for edutainment applications. In Proc ICPHS: 18th International Congress of Phonetic Sciences, Glasgow. IPA.

 Rita Policarpo (2015). Semantic classification of nouns. Master’s thesis, Instituto Superior Técnico.

Year 2014 : 6 citations

 Alan Valejo, Brett Drury, Jorge Valverde-Rebaza and Alneu de Andrade Lopes. Identification of Related Brazilian Portuguese Verb Groups Using Overlapping Community Detection. Proceedings of International Conference on the Computational Processing of the Portuguese Language (PROPOR 2014), LNCS, Volume 8775, pp 292-297. Springer, 2014.

 Raquel Amaro. Extracting Semantic Relations from Portuguese Corpora using Lexical-Syntactic Patterns. Proceedings of the 9th International Conference on Language Resources and Evaluation (LREC'14). ELRA, Reykjavik, Iceland. 2014.

 Nabil Hathout, Franck Sajous and Basilio Calderone. GLÀFF, a Large Versatile French Lexicon. Proceedings of the 9th International Conference on Language Resources and Evaluation (LREC'14). ELRA, Reykjavik, Iceland. 2014.

 Basilio Calderone, Nabil Hathout, Franck Sajous. From GLÀFF to PsychoGLÀFF: a Large Psycholinguistics-oriented French Lexical Resource. Proceedings of the XVI EURALEX International Congress, 15-19 July 2014, Bolzano/Bozen. 2014.

 Franck Sajous, Nabil Hathout, Basilio Calderone. Ne jetons pas le Wiktionnaire avec l'oripeau du Web ! Études et réalisations fondées sur le dictionnaire collaboratif. 4ème Congrès Mondial de Linguistique Française (CMLF 2014), Berlin, Allemagne, 2014.

 Marcos Garcia (2014). Extracção de Relações Semânticas. Recursos, Ferramentas e Estratégias. PhD thesis, Universidade de Santiago de Compostela.

Year 2013 : 4 citations

 Pinheiro, V., Furtado, V., Pequeno, T., and Franco, W. (2013). A semi-automated method for acquisition of common-sense and inferentialist knowledge. Journal of the Brazilian Computer Society, 19(1):75–87. Springer.

 Franck Sajous, Nabil Hathout and Basilio Calderone. GLÀFF, un Gros Lexique À tout Faire du Français. Actes de la 20e conférence sur le Traitement Automatique des Langues Naturelles (TALN'2013), pp. 285-298. 2013.

 Xavier Gómez Guinovart and Alberto Simões. Retreading Dictionaries for the 21st Century. Proceedings of 2nd Symposium on Languages, Applications and Technologies (SLATE 2013). OASIcs, 2013.

 Marcos Garcia and Pablo Gamallo. Exploring the effectiveness of linguistic knowledge for biographical relation extraction. Natural Language Engineering. 2013.

Year 2012 : 1 citations

 Alberto Simões, Álvaro Iriarte Sanromán, José João Almeida. Dicionário-Aberto: A Source of Resources for the Portuguese Language Processing. Proceedings of Computational Processing of the Portuguese Language (PROPOR 2012), pp. 121-127, LNCS Volume 7243/2012. 2012

Year 2010 : 1 citations

 Hernani Pereira Gomes Costa. Automatic Extraction and Validation of Lexical Ontologies from text. MSc Thesis. University of Coimbra, 2010.