3) Our findings are more consistent with most previous work on configurations such as usefulness of character information (<cite>Lample et al., 2016</cite>; Ma and Hovy, 2016) , optimizer (Chiu and Nichols, 2016; <cite>Lample et al., 2016</cite>; Ma and Hovy, 2016) and tag scheme (Ratinov and Roth, 2009; Dai et al., 2015) .