We used the same experimental datasets as in<cite> (Huang and Yates, 2009</cite> ) for cross-domain POS tagging from Wall Street Journal (WSJ) domain (Marcus et al., 1993) to MED-LINE domain (PennBioIE, 2005) and for crossdomain NP chunking from CoNLL shared task dataset (Tjong et al., 2000) to Open American National Corpus (OANC) (Reppen et al., 2005) .