(Ahn, 2006;Ji and Grishman, 2008;Hong et al., 2011;McClosky et al., 2011;Li et al., 2013Li et al., , 2014Nguyen and Grishman, 2015;Nguyen et al., 2016).
• The experimental results show that the quality of our large scale automatically labeled data is competitive with elaborately humanannotated data.