Compositional Generalization in Image Captioning
Table 5: Number of occurrences of concept pairs in the COCO training and validation set. The full training set size is 82,783 images, the validation set consists of 40,504 images.
['[EMPTY]', 'Training Set', 'Validation Set']
The two numbers indicate scores for the COCO training set (which is also used for training, by holding out exactly this set of images) and the COCO validation set (which is used for evaluation).