Abalada, SilvanaCabarrão, VeraCardoso, Aida2018-01-172018-01-172010http://hdl.handle.net/10451/30667We present a semantic taxonomy to classify nominal multiword lexical units (MLU) for European Portuguese. Despite being built by single words, MLU don’t have a compositional meaning and have morphosyntactic restrictions. These units are so important in any text that their identification and classification is essential for information extraction and retrieval in Natural Language Processing. We adapted and applied a semantic taxonomy, based on the Lancaster semantic lexicon (Piao et alii, 2005), to a list of MLU extracted from CETEMPúblico. The results of the annotation task validated our taxonomy, because we were able to classify 97,1% of the corpus.porSemantic taxonomyMultiword lexical unitsNatural language processingjournal article