Labeled Morphological Segmentation with Semi-Markov Models

Ryan Cotterell, Thomas Müller, Alexander Fraser, Hinrich Schütze
2015 Proceedings of the Nineteenth Conference on Computational Natural Language Learning  
We present labeled morphological segmentation-an alternative view of morphological processing that unifies several tasks. We introduce a new hierarchy of morphotactic tagsets and CHIPMUNK, a discriminative morphological segmentation system that, contrary to previous work, explicitly models morphotactics. We show improved performance on three tasks for all six languages: (i) morphological segmentation, (ii) stemming and (iii) morphological tag classification. For morphological segmentation our
more » ... thod shows absolute improvements of 2-6 points F 1 over a strong baseline.
doi:10.18653/v1/k15-1017 dblp:conf/conll/Cotterell0FS15 fatcat:wycuxrgvofgohb3kaljljk3syq