Papers › A Framework For Contrastive Self-Supervised Learning And Designing A New Approach

A Framework For Contrastive Self-Supervised Learning And Designing A New Approach

31 Aug 2020arXiv:2009.00104archive 2025-07-28

William Falcon, Kyunghyun Cho

Contrastive self-supervised learning (CSL) is an approach to learn useful representations by solving a pretext task that selects and compares anchor, negative and positive (APN) features from an unlabeled dataset. We present a conceptual framework that characterizes CSL approaches in five aspects (1) data augmentation pipeline, (2) encoder selection, (3) representation extraction, (4) similarity measure, and (5) loss function. We analyze three leading CSL approaches--AMDIM, CPC, and SimCLR--, and show that despite different motivations, they are special cases under this framework. We show the utility of our framework by designing Yet Another DIM (YADIM) which achieves competitive results on CIFAR-10, STL-10 and ImageNet, and is more robust to the choice of encoder and the representation extraction strategy. To support ongoing CSL research, we release the PyTorch implementation of this conceptual framework along with standardized implementations of AMDIM, CPC (V2), SimCLR, BYOL, Moco (V2) and YADIM.

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compare_version PyTorchLightning/pytorch-lightning/src/lightning/pytorch/_graveyard/_torchmetrics.py community (archive-listed) unverified Apache-2.0 (permissive) · ee13e2c8a9c4eb60 · report
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Tasks

Data AugmentationImage ClassificationSelf-Supervised Learning

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Image Classification STL-10 AMDIM Percentage correct 93.80 #25 of 117 Archive leaderboard report
Image Classification STL-10 YADIM Percentage correct 92.15 #29 of 117 Archive leaderboard report
Image Classification STL-10 CPC† Percentage correct 78.36 #67 of 117 Archive leaderboard report
Image Classification STL-10 Simulated Fixations Percentage correct 61 #103 of 117 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 PoolingBatch NormalizationBottleneck Residual BlockCSLColorJitterConvolutionDense ConnectionsFeedforward NetworkGlobal Average PoolingInfoNCEKaiming InitializationMax PoolingMoCoNT-XentRandom Gaussian BlurRandom Resized CropReLUResidual BlockResidual ConnectionSimCLR

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