Enhancing lexical-based approach with external knowledge for Vietnamese multiple-choice reading comprehension
Figure 4: Analysis and visualization of the best model’s result with different reading text levels.
['Grade', '#Correct', '#Total', 'Acc.(%)']
We can observe that the difficulty of the reading comprehension task increases together with the level of reading text. The system could answer questions of the 2nd grade well, over 78% in accuracy. It was more challenging to predict correct answers for questions of the 3rd to 5th grades (less than 68%). The performance on 1st grade questions is not as high as that on the 2nd grade questions because the amount of questions of the 1st grade is much fewer than those of other grades.