In addition, we developed our own automatic text segmentation system and a part-of-speech tagger, since our texts often contain orthographic deviations, domain-specific structures such as fragments, subject-less sentences, interjections, discourse particles, and domain-specific formulaic communicative routines in salutation and greeting.
we demonstrate that the CRF-based POS tagger could be boosted to a domain-specific text by adding a small amount of in-domain data.