Papers › Billion-scale semi-supervised learning for image classification

Billion-scale semi-supervised learning for image classification

2 May 2019arXiv:1905.00546archive 2025-07-28

I. Zeki Yalniz, Hervé Jégou, Kan Chen, Manohar Paluri, Dhruv Mahajan

This paper presents a study of semi-supervised learning with large convolutional networks. We propose a pipeline, based on a teacher/student paradigm, that leverages a large collection of unlabelled images (up to 1 billion). Our main goal is to improve the performance for a given target architecture, like ResNet-50 or ResNext. We provide an extensive analysis of the success factors of our approach, which leads us to formulate some recommendations to produce high-accuracy models for image classification with semi-supervised learning. As a result, our approach brings important gains to standard architectures for image, video and fine-grained classification. For instance, by leveraging one billion unlabelled images, our learned vanilla ResNet-50 achieves 81.2% top-1 accuracy on the ImageNet benchmark.

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Code

facebookresearch/semi-supervised-ImageNet1K-models mentioned on GitHubpytorchNOASSERTION report
salesforce/ensemble-of-averages mentioned on GitHubpytorch report
tiskw/patchcore-ad mentioned on GitHubpytorchMIT report

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Tasks

ClassificationGeneral ClassificationImage ClassificationObject RecognitionVideo Classificationimage-classification

Datasets

Introduced by this paper, per the archive.

IG-1B-Targeted

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Image Classification ImageNet ResNeXt-101 32x16d (semi-weakly sup.) Number of params 193M #293 of 1060 Archive leaderboard report
Image Classification ImageNet ResNeXt-101 32x16d (semi-weakly sup.) Top 1 Accuracy 84.8% #293 of 1060 Archive leaderboard report
Image Classification ImageNet ResNeXt-101 32x8d (semi-weakly sup.) Number of params 88M #330 of 1060 Archive leaderboard report
Image Classification ImageNet ResNeXt-101 32x8d (semi-weakly sup.) Top 1 Accuracy 84.3% #330 of 1060 Archive leaderboard report
Image Classification ImageNet ResNeXt-101 32x4d (semi-weakly sup.) Number of params 42M #431 of 1060 Archive leaderboard report
Image Classification ImageNet ResNeXt-101 32x4d (semi-weakly sup.) Top 1 Accuracy 83.4% #431 of 1060 Archive leaderboard report
Image Classification OmniBenchmark IG-1B Average Top-1 Accuracy 40.4 #6 of 22 Archive leaderboard report
Object Recognition shape bias SWSL (ResNeXt-101) shape bias 49.8 #10 of 18 Archive leaderboard report
Object Recognition shape bias SWSL (ResNet-50) shape bias 28.6 #16 of 18 Archive leaderboard report

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Methods

1x1 ConvolutionAverage PoolingBatch NormalizationBottleneck Residual BlockConvolutionGlobal Average PoolingGrouped ConvolutionKaiming InitializationMax PoolingReLUResNeXtResNeXt BlockResidual BlockResidual ConnectionSGD with MomentumWeight Decay

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