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CDMAD: Class-Distribution-Mismatch-Aware Debiasing for Class-Imbalanced Semi-Supervised Learning
March 18, 2024, 4:45 a.m. | Hyuck Lee, Heeyoung Kim
cs.CV updates on arXiv.org arxiv.org
Abstract: Pseudo-label-based semi-supervised learning (SSL) algorithms trained on a class-imbalanced set face two cascading challenges: 1) Classifiers tend to be biased towards majority classes, and 2) Biased pseudo-labels are used for training. It is difficult to appropriately re-balance the classifiers in SSL because the class distribution of an unlabeled set is often unknown and could be mismatched with that of a labeled set. We propose a novel class-imbalanced SSL algorithm called class-distribution-mismatch-aware debiasing (CDMAD). For each …
abstract algorithms arxiv balance challenges class classifiers cs.cv distribution face labels semi-supervised semi-supervised learning set ssl supervised learning training type
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