Learning from Reduced Labels for Long-Tailed Data

Fuente: arXiv
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Hauptverfasser: Wei, Meng, Li, Zhongnian, Zhou, Yong, Xu, Xinzheng
Format: Preprint
Veröffentlicht: 2024
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author Wei, Meng
Li, Zhongnian
Zhou, Yong
Xu, Xinzheng
author_facet Wei, Meng
Li, Zhongnian
Zhou, Yong
Xu, Xinzheng
contents Long-tailed data is prevalent in real-world classification tasks and heavily relies on supervised information, which makes the annotation process exceptionally labor-intensive and time-consuming. Unfortunately, despite being a common approach to mitigate labeling costs, existing weakly supervised learning methods struggle to adequately preserve supervised information for tail samples, resulting in a decline in accuracy for the tail classes. To alleviate this problem, we introduce a novel weakly supervised labeling setting called Reduced Label. The proposed labeling setting not only avoids the decline of supervised information for the tail samples, but also decreases the labeling costs associated with long-tailed data. Additionally, we propose an straightforward and highly efficient unbiased framework with strong theoretical guarantees to learn from these Reduced Labels. Extensive experiments conducted on benchmark datasets including ImageNet validate the effectiveness of our approach, surpassing the performance of state-of-the-art weakly supervised methods.
format Preprint
id arxiv_https___arxiv_org_abs_2403_16469
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Learning from Reduced Labels for Long-Tailed Data
Wei, Meng
Li, Zhongnian
Zhou, Yong
Xu, Xinzheng
Machine Learning
Computer Vision and Pattern Recognition
Long-tailed data is prevalent in real-world classification tasks and heavily relies on supervised information, which makes the annotation process exceptionally labor-intensive and time-consuming. Unfortunately, despite being a common approach to mitigate labeling costs, existing weakly supervised learning methods struggle to adequately preserve supervised information for tail samples, resulting in a decline in accuracy for the tail classes. To alleviate this problem, we introduce a novel weakly supervised labeling setting called Reduced Label. The proposed labeling setting not only avoids the decline of supervised information for the tail samples, but also decreases the labeling costs associated with long-tailed data. Additionally, we propose an straightforward and highly efficient unbiased framework with strong theoretical guarantees to learn from these Reduced Labels. Extensive experiments conducted on benchmark datasets including ImageNet validate the effectiveness of our approach, surpassing the performance of state-of-the-art weakly supervised methods.
title Learning from Reduced Labels for Long-Tailed Data
topic Machine Learning
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2403.16469