Papers › Long-Tailed Classification with Gradual Balanced Loss and Adaptive Feature Generation

Long-Tailed Classification with Gradual Balanced Loss and Adaptive Feature Generation

28 Feb 2022arXiv:2203.00452archive 2025-07-28

Zihan Zhang, Xiang Xiang

The real-world data distribution is essentially long-tailed, which poses great challenge to the deep model. In this work, we propose a new method, Gradual Balanced Loss and Adaptive Feature Generator (GLAG) to alleviate imbalance. GLAG first learns a balanced and robust feature model with Gradual Balanced Loss, then fixes the feature model and augments the under-represented tail classes on the feature level with the knowledge from well-represented head classes. And the generated samples are mixed up with real training samples during training epochs. Gradual Balanced Loss is a general loss and it can combine with different decoupled training methods to improve the original performance. State-of-the-art results have been achieved on long-tail datasets such as CIFAR100-LT, ImageNetLT, and iNaturalist, which demonstrates the effectiveness of GLAG for long-tailed visual recognition.

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Long-tail Learning

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Long-tail Learning CIFAR-100-LT (ρ=10) GLAG Error Rate 35.5 #14 of 31 Archive leaderboard report
Long-tail Learning CIFAR-100-LT (ρ=100) GLAG Error Rate 48.3 #24 of 66 Archive leaderboard report

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