Online Updating of Word Representations for Part-of-Speech Tagging
  We propose online unsupervised domain adaptation (DA), which is performed incrementally as data comes in and is applicable when batch DA is not possible. In a part-of-speech (POS) tagging evaluation, we find that online unsupervised DA performs as well as batch DA. 
Wenpeng Yin, Tobias Schnabel, Hinrich Sch\"utze
cs.CL