Momentum Contrast for Unsupervised Visual Representation Learning
Kaiming He, Haoqi Fan, Yuxin Wu, Saining Xie, Ross Girshick
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We present Momentum Contrast (MoCo) for unsupervised visual representation learning. From a perspective on contrastive learning as dictionary look-up, we build a dynamic dictionary with a queue and a moving-averaged encoder. This enables building a large and consistent dictionary on-the-fly that facilitates contrastive unsupervised learning. MoCo provides competitive results under the common linear protocol on ImageN ...
et classification. More importantly, the representations learned by MoCo transfer well to downstream tasks. MoCo can outperform its supervised pre-training counterpart in 7 detection/segmentation tasks on PASCAL VOC, COCO, and other datasets, sometimes surpassing it by large margins. This suggests that the gap between unsupervised and supervised representation learning has been largely closed in many vision tasks.
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We present Momentum Contrast (MoCo) for unsupervised visual representation learning.
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Research context
12,029
Citations
96
References
Tasks
Pascal (unit), Computer science, Contrast (vision), Unsupervised learning, Segmentation, Feature learning, Representation (politics), Pattern recognition (psychology)
Methods
Transformer
Domains
Artificial intelligence, Machine learning, Natural language processing
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