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Coreference Resolution for Morphologically Rich Languages. Adaptation of the Stanford System to Basque.

  • Autores: Ander Soraluze Irureta, Olatz Arregi Uriarte Árbol académico, Xabier Arregi Iparragirre Árbol académico, Arantza Díaz de Ilarraza Sánchez Árbol académico
  • Localización: Procesamiento del lenguaje natural, ISSN 1135-5948, Nº. 55, 2015, págs. 23-30
  • Idioma: inglés
  • Títulos paralelos:
    • Resoluci´on de coreferencia para lenguajes morfol´ogicamente ricas. Adaptaci´on del sistema de Stanford al euskera
  • Enlaces
  • Resumen
    • español

      Este artículo presenta el proceso de adaptación del sistema de resolución de coreferencia de Stanford para el euskera, un idioma aglutinante, de núcleo final y pro-drop. Este sistema ha sido integrado en una cadena de análisis lingüística de manera que recibe como entrada textos procesados y analizados para el euskera. Hemos demostrado que haciendo uso de las características lingüísticas del lenguaje se puede mejorar la resolución de la coreferencia. En el caso de los lenguajes aglutinantes el uso de características morfosintácticas mejora claramente el rendimiento del sistema obteniéndose un incremento en CoNLL F1 de 5 puntos para el caso de menciones automáticas y de 7,87 puntos con menciones gold.

    • English

      This paper presents the adaptation of the Stanford coreference resolution system to Basque, an agglutinative head-final pro-drop language. The adapted system has been integrated into a global linguistic analysis pipeline so that the input of the system are original Basque raw texts linguistically processed, and annotated. We demonstrate that language-specific characteristics have a noteworthy effect on coreference resolution. In the case of agglutinative languages the use of morphosyntactic features improves substantially the system's performance, obtaining a gain in CoNLL F1 results of 5 points when automatic mentions are used and of 7.87 points when gold mentions are provided.

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