Evaluation of parsed corpora: Experiments in user-transparent and user-visible evaluation


Diana Santos (SINTEF Tele og Data )

Caroline Gasperin, (Faculdade de Informática, PPGCC, PUCRS)


EP1: Evaluation


In the present paper, we describe and discuss the evaluation of parsed corpora, namely the ones that are available on the Web for querying in the AC/DC project. The paper has two parts: the first one suggests a set of different evaluation parameters and measures that are much more illuminating than commonly used simple precision measures, while the second evaluates the parsed corpus for a particular task -- that of automatic thesaurus building. The two evaluations are thus complementary, in that, in Gaizauskas (1998) terminology, the first is a typical user-transparent evaluation, while the second is user-visible.


Parse evaluation, Parsed corpora, Portuguese, Semantic aquisition, Tagging

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