Unidad discursiva y relaciones retóricas: un estudio acerca de las unidades de discurso en el etiquetado de un corpus en euskera

• Autores: Mikel Iruskieta Quintian, Arantza Díaz de Ilarraza Sánchez , Mikel Lersundi Ayestaran
• Localización: Procesamiento del lenguaje natural, ISSN 1135-5948, Nº. 47, 2011, págs. 137-144
• Idioma: español
• Enlaces
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• Dialnet Métricas: 1 Cita
• Resumen
  • español

    En este artículo se describe el estudio realizado sobre las características del etiquetado de la estructura de discurso, según la Teoría de la Estructura Retórica, en los niveles inter-oracional e intra-oracional. El corpus etiquetado está compuesto por textos médicos escritos en euskera y extraídos de la Gaceta Médica de Bilbao siendo nuestro objetivo final establecer una metodología general para la anotación de corpus a nivel discursivo. En este trabajo se analizan los acuerdos y desacuerdos de la anotación realizada por dos anotadores en cada nivel. Los resultados obtenidos sugieren que la segmentación en unidades de discurso es más compleja en el nivel intra-oracional mientras que la asignación de relaciones retóricas lo es en el nivel inter-oracional. Además hemos detectado que hay relaciones que aparecen con mayor frecuencia en cada nivel y otras se dan indistintamente en ambos niveles inter- e intra-oracional. Este estudio sienta las bases para el futuro desarrollo de un anotador automático de relaciones.

  • English

    This article describes the study on the features used for labelling the discourse structure, according to the Rhetorical Structure Theory, at the inter-sentential and intra-sentential levels. The tagged corpus is composed of medical texts written in Basque and extracted from the medical journal 'Gaceta Médica de Bilbao'. The difficulties encountered both while identifying the discourse units and while establishing the relations are analysed at each level based on the observation of agreement and disagreement identified in the texts annotated by two annotators. The results obtained suggest that the segmentation into units of discourse is more complex at the intra-sentential level while the assignment of rhetorical relations is more difficult at the inter-sentential level. We also note that some relations occur more frequently at the intra-sentential level and others at the inter-sentential level. However, there are relations that can appear indistinctively in both levels intra- and inter-sentential. This study will lay the foundations to carry out the automatic annotation process that the authors intend to perform shortly.

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