text: (a)  (b) 
  
  Figure 8 Masking Strategy Ablation. Evaluating a linear probe on a ViT-B/16 pretrained with V-JEPA on K400 under 
  various 3D Multi-Block masking settings. We examine the impact of (a) sampling several masks per video, (b) varying the 
  number of blocks in a mask, and (c) varying the average spatial and temporal masking ratio. A temporal masking ratio of 
  100% extends the spatial mask across all the frames in the clip. We find it important to maintain a high spatial and temporal 
  masking ratio during pretraining. 