text: Multi-Mask Prediction. To increase the efficiency of V-JEPA, we use a multi-masking strategy (Caron et al., 
  2020; Baevski et al., 2022a), which enables us to amortize the cost of the target computation. As mentioned in 
  Section 3, for a given video clip, we sample 2 different masks, short-range and long-range. While we need to forward 
  propagate the x-encoder and predictor separately for each mask, we only need to compute the y-representation once. 