Papers › TCLR: Temporal Contrastive Learning for Video Representation

TCLR: Temporal Contrastive Learning for Video Representation

20 Jan 2021arXiv:2101.07974archive 2025-07-28

Ishan Dave, Rohit Gupta, Mamshad Nayeem Rizve, Mubarak Shah

Contrastive learning has nearly closed the gap between supervised and self-supervised learning of image representations, and has also been explored for videos. However, prior work on contrastive learning for video data has not explored the effect of explicitly encouraging the features to be distinct across the temporal dimension. We develop a new temporal contrastive learning framework consisting of two novel losses to improve upon existing contrastive self-supervised video representation learning methods. The local-local temporal contrastive loss adds the task of discriminating between non-overlapping clips from the same video, whereas the global-local temporal contrastive aims to discriminate between timesteps of the feature map of an input clip in order to increase the temporal diversity of the learned features. Our proposed temporal contrastive learning framework achieves significant improvement over the state-of-the-art results in various downstream video understanding tasks such as action recognition, limited-label action classification, and nearest-neighbor video retrieval on multiple video datasets and backbones. We also demonstrate significant improvement in fine-grained action classification for visually similar classes. With the commonly used 3D ResNet-18 architecture with UCF101 pretraining, we achieve 82.4% (+5.1% increase over the previous best) top-1 accuracy on UCF101 and 52.9% (+5.4% increase) on HMDB51 action classification, and 56.2% (+11.7% increase) Top-1 Recall on UCF101 nearest neighbor video retrieval. Code released at github.com/DAVEISHAN/TCLR.

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val_epoch DAVEISHAN/TCLR/nn_retrieval/complete_retrieval.py official repository unverified MIT (permissive) · 8730787fb5385f5c · report

Tasks

Action ClassificationAction RecognitionContrastive LearningGeneral ClassificationRepresentation LearningRetrievalSelf-Supervised Action RecognitionSelf-Supervised LearningSelf-supervised Video RetrievalVideo Understanding

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Self-Supervised Action Recognition HMDB51 TCLR (R3D-18) Frozen false #31 of 48 Archive leaderboard report
Self-Supervised Action Recognition HMDB51 TCLR (R3D-18) Pre-Training Dataset UCF101 #31 of 48 Archive leaderboard report
Self-Supervised Action Recognition HMDB51 TCLR (R3D-18) Top-1 Accuracy 52.9 #31 of 48 Archive leaderboard report
Self-Supervised Action Recognition UCF101 TCLR (R3D-18) 3-fold Accuracy 82.4 #31 of 53 Archive leaderboard report
Self-Supervised Action Recognition UCF101 TCLR (R3D-18) Frozen false #31 of 53 Archive leaderboard report
Self-Supervised Action Recognition UCF101 TCLR (R3D-18) Pre-Training Dataset UCF101 #31 of 53 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

Contrastive Learning

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