String Kernels for Native Language Identification: Insights from Behind the Curtains Radu Tudor Ionescu author Marius Popescu author Aoife Cahill author 2016-09 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal ionescu-etal-2016-string 10.1162/COLI_a_00256 https://aclanthology.org/J16-3005/ 2016-09 42 3 491 525