15 We also experimented with native language classification on scientific documents using a version of the ACL Anthology Network (Radev et al., 2009, AAN) annotated for experiments in stylemetric tasks, including a native/non-native author judgment (Bergsma et al., 2012).
manual and automatic approaches to inducing tree fragments have recently been found to be useful in an explicit approach to text classification, which employs specific tree fragments as features in standard classifiers (Post, 2011;Wong and Dras, 2011;Swanson and Charniak, 2012).