ParaMor and Morpho challenge 2008

  • Authors:
  • Christian Monson;Jaime Carbonell;Alon Lavie;Lori Levin

  • Affiliations:
  • Center for Spoken Language Understanding, Oregon Health and Science University, Beaverton, OR;Language Technologies Institute, Carnegie Mellon University, Pittsburgh, PA;Language Technologies Institute, Carnegie Mellon University, Pittsburgh, PA;Language Technologies Institute, Carnegie Mellon University, Pittsburgh, PA

  • Venue:
  • CLEF'08 Proceedings of the 9th Cross-language evaluation forum conference on Evaluating systems for multilingual and multimodal information access
  • Year:
  • 2008

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Abstract

We summarize the strong performance of ParaMor, an unsupervised morphology induction system, at Morpho Challenge 2008. When ParaMor's morphological analyses, which specialize at identifying inflectional morphology, are added to the analyses from the general-purpose unsupervised morphology induction system, Morfessor, the combined system identifies the morphemes of all five Morpho Challenge languages at recall scores higher than those of any other system which competed in the Challenge. These strong recall scores lead to F1 values for morpheme identification as high as or higher than those of any competing system for all the competition languages but English.