using a single center view. We also examine end-to-end
fine-tuning performance of the models on Kinetics-400.
Results of this comparison are reported in Table 1 and
indicate that predicting in feature space provides a con-
sistent performance improvement over pixel space pre-
diction in both frozen evaluation of the video backbone,
as well as end-to-end fine-tuning.
4.2 Pretraining Data Distribution
Next we study the impact of the pretraining data dis-
tribution in Table 2. Leveraging large scale datasets
5