(<cite>Antol et al. 2015</cite>) , and the corresponding similarity scores of BQ are generated by our basic question generation method, referring to Section 3. Note that we preprocess the training and validation question datasets from the <cite>VQA dataset</cite> (<cite>Antol et al. 2015</cite>) , so the total number of basic question candidates is less than the total number of training and validation question datasets in <cite>VQA dataset</cite> (<cite>Antol et al. 2015</cite>) .