Detecting the central units in two different genres and languagesa preliminary study of Brazilian Portuguese and Basque texts

  1. Mikel Iruskieta
  2. Gorka Labaka
  3. Juliano D. Antonio
Revista:
Procesamiento del lenguaje natural

ISSN: 1135-5948

Año de publicación: 2016

Número: 56

Páginas: 65-72

Tipo: Artículo

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Otras publicaciones en: Procesamiento del lenguaje natural

Resumen

El objetivo de este trabajo es presentar las mejoras de un detector automático basado en reglas que determina la idea principal o unidad discursiva más pertinente de dos lenguas tan diferentes como el euskera y el portugués de Brasil y en dos géneros muy distintos como son los resúmenes de los artículos científicos y las respuestas argumentativas. La unidad central (CU, por sus siglas en inglés) puede ser de interés para entender los textos partiendo de la estructura discursiva relacional y poderlo aplicar en tareas de Procesamiento del Lenguaje Natural (PLN) tales como resumen automático, sistemas de pregunta-respuesta o análisis de sentimiento. En los textos de respuesta argumentativa, identificar la CU es un paso esencial para un evaluador automático de considere la estructura discursiva de dichos textos. El marco teórico en el que hemos desarrollado el trabajo es la Rhetorical Structure Theory (RST) de Mann y Thompson (1988), que parte de la segmentación discursiva y finaliza con la anotación de la unidad central. Los resultados demuestran que las unidades centrales en diferentes lenguas y géneros son detectadas con similares resultados automáticamente, aunque todavía hay espacio para mejora.

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