Search Results for author: Hyuck Lee

Found 2 papers, 2 papers with code

CDMAD: Class-Distribution-Mismatch-Aware Debiasing for Class-Imbalanced Semi-Supervised Learning

1 code implementation CVPR 2024 Hyuck Lee, Heeyoung Kim

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.

Pseudo Label

ABC: Auxiliary Balanced Classifier for Class-imbalanced Semi-supervised Learning

1 code implementation NeurIPS 2021 Hyuck Lee, Seungjae Shin, Heeyoung Kim

The ABC is trained with a class-balanced loss of a minibatch, while using high-quality representations learned from all data points in the minibatch using the backbone SSL algorithm to avoid overfitting and information loss. Moreover, we use consistency regularization, a recent SSL technique for utilizing unlabeled data in a modified way, to train the ABC to be balanced among the classes by selecting unlabeled data with the same probability for each class.

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