Automatic Discovery of Fuzzy Synsets from Dictionary Definitions



In order to deal with ambiguity in natural language, it is common to organise words, according to their senses, in synsets, which are groups of synonymous words that can be seen as concepts. The manual creation of a broad-coverage synset base is a time- consuming task, so we take advantage of dictionary definitions for extracting synonymy pairs and clus- tering for identifying synsets. Since word senses are not discrete, we create fuzzy synsets, where each word has a membership degree. We report on the results of the creation of a fuzzy synset base for Portuguese, from three electronic dictionaries. The resulting resource is larger than existing hancrafted Portuguese thesauri.


Word Senses, Synsets, Fuzzy Clustering, Uncertainty


Fuzzy Clustering

Related Project



22nd International Joint Conference on Artificial Intelligence (IJCAI 2011), Barcelona, Spain, July 2011

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Year 2016 : 1 citations

 Hossayni, S.-A., Akbarzadeh-T, M.-R., Recupero, D. R., Gangemi, A., and de la Rosa i Esteva, J. L. (2016). Fuzzy synsets, and lexicon-based sentiment analysis. In Joint Proceedings of the 2th Workshop on Emotions, Modality, Sentiment Analysis and the Semantic Web and the 1st International Workshop on Extraction and Processing of Rich Semantics from Medical Texts, Heraklion, Greece.

Year 2015 : 2 citations

 Gunawan, Purnama, I. K. E., and Hariadi, M. (2015). Supervised learning indonesian gloss acquisition. IAENG International Journal of Computer Science, 42(4):337–346.

 Hu, F., Shao, Z., and Ruan, T. (2015). Self-supervised synonym extraction from the web. Journal of Information Science and Engineering, 31:1133–1148.

Year 2014 : 3 citations

 Alberto Simões and Xavier Gómez Guinovart (2014). Bootstrapping a Portuguese wordnet from Galician, Spanish and English wordnets. In Proceedings of 2nd International Conference on Speech and Language Technologies for Iberian Languages (IberSpeech 2014), volume 8854 of LNCS, pages 239–248, Las Palmas de Gran Canaria, Spain. Springer.

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 Bing, Z. and Chun, C. (2014). Research on the synset construction method based on term normalization. Journal of Intelligence, 33(7):171–175.

Year 2013 : 1 citations

 Madeeh Nayer El-Gedawy. Using Fuzzifiers to Solve Word Sense Ambiguation in Arabic Language. International Journal of Computer Applications (0975 – 8887), Volume 79 – No2, October 2013

Year 2012 : 2 citations

 Leonardo Zilio, Kassius Prestes, Rodrigo Wilkens, Aline Villavicencio. Geração semi-automática de uma ontologia geral de língua comum. XI Encontro de Linguística de Corpus (ELC), São Carlos, SP, Brasil, 2012.

 P. León Araúz, J. Gómez-Romero, F. Bobillo. A Fuzzy Ontology Extension of WordNet and EuroWordnet for Specialized Knowledge. Terminology and Knowledge Engineering Conference (TKE 2012). Madrid, Spain: Jun. 2012.