Labels tokens with their universal POS (UPOS) tags, treebank-specific POS (XPOS) tags, and universal morphological features (UFeats).

Property name Annotator class name Generated Annotation
pos POSProcessor UPOS, XPOS, and UFeats annotations accessible through Word’s properties pos, xpos, and ufeats.


Option name Type Default Description
pos_batch_size int 5000 When annotating, this argument specifies the maximum number of words to process as a minibatch for efficient processing.
Caveat: the larger this number is, the more working memory is required (main RAM or GPU RAM, depending on the computating device). This parameter should be set larger than the number of words in the longest sentence in your input document, or you might run into unexpected behaviors.

Training-Only Options

Most training-only options are documented in the argument parser of the POS/UFeats tagger.