Improved Baselines with Momentum Contrastive Learnins


Moco v2 = MoCo v1 + SimCLR


Moco v1

  • UNsupervised visual representation learning

  • dictionary look-up perspective

    \(\rightarrow\) build a dynamic dictionary ( with a queue = FIFO )

  • moving-averaged encoder


SimCLR

  • (1) large batch size for lots of negative samples
  • (2) stronger augmentation
  • (3) MLP projection head


MoCo v2 = Moco V1 + SimCLR (2) & (3)


figure2


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