ParaMor and morpho challenge 2008

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. Categories and Subject Descriptors: I.2 [Artificial Intelligence]: I.2.7 Natural Language Processing. General Terms: Experimentation. © 2009 Springer Berlin Heidelberg.