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Saying no but meaning yes: negation and sentiment analysis in Basque

In this work, we have analyzed the effects of negation on the semantic orientation in Basque. The analysis shows that negation markers can strengthen, weaken or have no effect on sentiment orientation of a word or a group of words. Using the Constraint Grammar formalism, we have designed and evaluated a set of linguistic rules to formalize these three phenomena. The results show that two phenomena, strengthening and no change, have been identified accurately and the third one, weakening, with acceptable results.

A Hybrid Approach For Automatic Disability Annotation

DIANN izeneko atazaren helburua biomedikuntzako ikerketako testuetan ezintasunak automatikoki detektatzean datza (adibidez, "ikusmenaren galera", "dementzia" etab.). Ezintasun hauek ezeztatuta egon daitezke ("dementziarik gabeko gaixoetan...") eta bai ezeztatutako baita ezeztatu gabeko ezintasunak, ingelesezko eta gaztelerazko Elsevier-eko 500 artikulu-laburpenetan detektatu behar dira. Ixa taldeak ataza honetan sistemarik hoberena aurkeztu du Ibereval 2018an.

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