Various NLP tasks have benefited from domain adaptation techniques, including part-ofspeech tagging (Blitzer et al., 2006; Huang and Yates, 2010a) , chunking (Daumé III, 2007;<cite> Huang and Yates, 2009)</cite> , named entity recognition (Guo et al., 2009; Turian et al., 2010) , dependency parsing (Dredze et al., 2007; Sagae and Tsujii, 2007) and semantic role labeling (Dahlmeier and Ng, 2010; Huang and Yates, 2010b) .