## Noun Group Chunker

action name | chunk
resources required | chunk model (max ent probabilities)
properties | Chunker.fileName
annotations required | token tagger ENAMEX
annotations added | ng

The statistical noun group chunker is an English chunker trained on the Penn TreeBank. It identifies noun groups (consisting of a head noun and its left modifiers) and assigns an ng annotation to each noun group. The chunker uses a maximum entropy model whose features are specific lexical tokens and their (Penn) part-of-speech, obtained from tagger annotations. If name annotations (ENAMEX) are present, the chunker will insure that noun groups boundaries do not appear in the middle of names.