Efficient Higher-Order CRFs for Morphological Tagging
Thomas Mueller, Helmut Schmid, Hinrich Schütze · 2013
Training higher-order conditional random fields is prohibitive for huge tag sets.We present an approximated conditional random field using coarse-to-fine decoding and early updating.We show that our implementation yields fast and accurate morphological taggers across six languages with different morphological properties and that across languages higher-order models give significant improvements over 1 st -order models.