The best model is selected based on the validation loss after training for 50 epochs.
initial datasets, e.g., VQAv1 (Antol et al., 2015) and COCO-QA (Ren et al., 2015a), exhibited significant language bias in which many questions could be answered correctly without looking at the image, e.g., for VQAv1 it was possible to achieve 50% accuracy using language alone (Kafle and Kanan, 2016).