... used for the training of the boundary detectors, they were removed after-wards from the annotated data sets to obtain a tran- divided by the length of the reference. To obtain WER in percent, ... data. Lu’s tool contributed 8 of the initial CB features and 6 of the initial PT fea-tures, and we computed the remaining CB and PT features using Perl scripts, the Stanford Parser, and Tregex. ... complexity is defined as the range of forms that surface in language production and the degree of sophistication of such forms” (Ortega, 2003). It is an important factor in the second lan-guage...