Papers › Big Transfer (BiT): General Visual Representation Learning

Big Transfer (BiT): General Visual Representation Learning

24 Dec 2019ECCV 2020 8arXiv:1912.11370archive 2025-07-28

Alexander Kolesnikov, Lucas Beyer, Xiaohua Zhai, Joan Puigcerver, Jessica Yung, Sylvain Gelly, Neil Houlsby

Transfer of pre-trained representations improves sample efficiency and simplifies hyperparameter tuning when training deep neural networks for vision. We revisit the paradigm of pre-training on large supervised datasets and fine-tuning the model on a target task. We scale up pre-training, and propose a simple recipe that we call Big Transfer (BiT). By combining a few carefully selected components, and transferring using a simple heuristic, we achieve strong performance on over 20 datasets. BiT performs well across a surprisingly wide range of data regimes -- from 1 example per class to 1M total examples. BiT achieves 87.5% top-1 accuracy on ILSVRC-2012, 99.4% on CIFAR-10, and 76.3% on the 19 task Visual Task Adaptation Benchmark (VTAB). On small datasets, BiT attains 76.8% on ILSVRC-2012 with 10 examples per class, and 97.0% on CIFAR-10 with 10 examples per class. We conduct detailed analysis of the main components that lead to high transfer performance.

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google-research/big_transfer officialmentioned on GitHubjaxApache-2.0 report
batsresearch/taglets mentioned on GitHubpytorchApache-2.0 report
bethgelab/InDomainGeneralizationBenchmark mentioned on GitHubpytorchApache-2.0 report
sayakpaul/FunMatch-Distillation mentioned on GitHubtf report
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conv1x1 batsresearch/taglets/taglets/models/resnetv2.py community (archive-listed) ran · our draft was wrong Apache-2.0 (permissive) · ee80cf467065076b · report
conv3x3 batsresearch/taglets/taglets/models/resnetv2.py community (archive-listed) ran · our draft was wrong Apache-2.0 (permissive) · f01b8d3901f0b289 · report
tf2th batsresearch/taglets/taglets/models/resnetv2.py community (archive-listed) ran · violated contract fingerprinted Apache-2.0 (permissive) · 7023eb86801bb3a3 · report
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Tasks

Few-Shot LearningFine-Grained Image ClassificationImage ClassificationOut-of-Distribution GeneralizationRepresentation Learning

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Fine-Grained Image Classification Oxford 102 Flowers BiT-L (ResNet) Accuracy 99.63% #2 of 25 Archive leaderboard report
Fine-Grained Image Classification Oxford 102 Flowers BiT-L (ResNet) Top-1 Error Rate 0.37 #2 of 25 Archive leaderboard report
Fine-Grained Image Classification Oxford 102 Flowers BiT-M (ResNet) Accuracy 99.30% #4 of 25 Archive leaderboard report
Fine-Grained Image Classification Oxford 102 Flowers BiT-M (ResNet) Top-1 Error Rate 0.70 #4 of 25 Archive leaderboard report
Fine-Grained Image Classification Oxford-IIIT Pets BiT-L (ResNet) Accuracy 96.62 #2 of 19 Archive leaderboard report
Fine-Grained Image Classification Oxford-IIIT Pets BiT-L (ResNet) Top-1 Error Rate 3.38% #2 of 19 Archive leaderboard report
Fine-Grained Image Classification Oxford-IIIT Pets BiT-M (ResNet) Accuracy 94.47 #5 of 19 Archive leaderboard report
Fine-Grained Image Classification Oxford-IIIT Pets BiT-M (ResNet) Top-1 Error Rate 5.53% #5 of 19 Archive leaderboard report
Image Classification CIFAR-10 BiT-L (ResNet) Percentage correct 99.37 #7 of 265 Archive leaderboard report
Image Classification CIFAR-10 BiT-M (ResNet) Percentage correct 98.91 #26 of 265 Archive leaderboard report
Image Classification CIFAR-100 BiT-L (ResNet) Percentage correct 93.51 #8 of 211 Archive leaderboard report
Image Classification CIFAR-100 BiT-M (ResNet) Percentage correct 92.17 #15 of 211 Archive leaderboard report
Image Classification Flowers-102 BiT-L (ResNet) Accuracy 99.63 #8 of 52 Archive leaderboard report
Image Classification Flowers-102 BiT-M (ResNet) Accuracy 99.30 #12 of 52 Archive leaderboard report
Image Classification ImageNet BiT-L (ResNet) Top 1 Accuracy 87.54% #80 of 1060 Archive leaderboard report
Image Classification ImageNet BiT-L (ResNet) Top 5 Accuracy 98.46 #80 of 1060 Archive leaderboard report
Image Classification ImageNet BiT-M (ResNet) Number of params 928M #237 of 1060 Archive leaderboard report
Image Classification ImageNet BiT-M (ResNet) Top 1 Accuracy 85.39% #237 of 1060 Archive leaderboard report
Image Classification ImageNet ReaL BiT-L Accuracy 90.54% #17 of 57 Archive leaderboard report
Image Classification ImageNet ReaL BiT-L Params 928M #17 of 57 Archive leaderboard report
Image Classification ImageNet ReaL BiT-M Accuracy 89.02% #25 of 57 Archive leaderboard report
Image Classification ObjectNet BiT-L (ResNet-152x4) Top-1 Accuracy 58.7 #21 of 106 Archive leaderboard report
Image Classification ObjectNet BiT-L (ResNet-152x4) Top-5 Accuracy 80 #21 of 106 Archive leaderboard report
Image Classification ObjectNet BiT-M (ResNet-152x4) Top-1 Accuracy 47.0 #33 of 106 Archive leaderboard report
Image Classification ObjectNet BiT-M (ResNet-152x4) Top-5 Accuracy 69 #33 of 106 Archive leaderboard report
Image Classification ObjectNet BiT-S (ResNet-152x4) Top-1 Accuracy 36.0 #50 of 106 Archive leaderboard report
Image Classification ObjectNet BiT-S (ResNet-152x4) Top-5 Accuracy 57 #50 of 106 Archive leaderboard report
Image Classification ObjectNet (Bounding Box) BiT-L (ResNet) Top 5 Accuracy 85.1 #1 of 4 Archive leaderboard report
Image Classification ObjectNet (Bounding Box) BiT-M (ResNet) Top 5 Accuracy 76.0 #2 of 4 Archive leaderboard report
Image Classification ObjectNet (Bounding Box) BiT-S (ResNet) Top 5 Accuracy 64.4 #3 of 4 Archive leaderboard report
Image Classification OmniBenchmark BiT-M Average Top-1 Accuracy 40.4 #7 of 22 Archive leaderboard report
Image Classification VTAB-1k BiT-L (50 hypers/task) Top-1 Accuracy 78.72 #2 of 34 Archive leaderboard report
Image Classification VTAB-1k BiT-L Top-1 Accuracy 76.3 #6 of 34 Archive leaderboard report
Image Classification VTAB-1k BiT-M Top-1 Accuracy 70.6 #11 of 34 Archive leaderboard report
Image Classification VTAB-1k BiT-S Top-1 Accuracy 66.9 #15 of 34 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

1x1 ConvolutionAverage PoolingBottleneck Residual BlockConvolutionFixResGlobal Average PoolingGroup NormalizationKaiming InitializationMax PoolingMixupRandom Horizontal FlipRandom Resized CropReLUResidual BlockResidual ConnectionSGD with MomentumWeight Standardization

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