When a paired t-test was carried out at the level of significance 0.01, the all-at-once approach was found to be significantly better than the one-at-a-time approach for POS tagging accuracy, although the difference was insignificant for word segmentation.
experim ent Num ber POS Accuracy(%) Figure 6: CTB 10-fold CV POS tagging accuracy using an all-at-once approach the time required for training and testing is increased significantly for the all-atonce approach.