Native Language Identification using Stacked Generalization
Table 8: Per-class performance breakdown of our top system’s results on the Toefl11-Test set. Best result per column in bold. Best and worst performances per column as also highlighted in green/yellow.
['Class', 'Precision', 'Recall', 'F1-score']
As shown in the confusion matrix, Hindi and Telugu have the worst performance. Recalculating the values without those two classes, the average F1-score improves to 0.89.