Before revision: Exposing diverse subword segmentations to neural machine translation (NMT) models often improves the robustness of machine translation . As NMT models experience various subword candidates , they become more robust to segmentation errors .
After revision: Exposing diverse subword segmentations to neural machine translation (NMT) models often improves the robustness of machine translation as NMT models can experience various subword candidates , they become more robust to segmentation errors .