This paper discusses the role of morphologicaland syntactic information in theautomatic acquisition of semantic classesfor Catalan adjectives, using decision treesas a tool for exploratory data analysis.We show that a simple mapping fromthe derivational type to the semantic classachieves 70.1% accuracy; syntactic functionreaches a slightly higher accuracy of73.5%. Although the accuracy scores arequite similar with the two resulting classifications,the kinds of mistakes are qualitativelyvery different. Morphology can beused as a baseline classification, and syntaxcan be used as a clue when there aremismatches between morphology and semantics.
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