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Debiased Self-Training for Semi-Supervised Learning. (arXiv:2202.07136v4 [cs.LG] UPDATED)
cs.LG updates on arXiv.org arxiv.org
Deep neural networks achieve remarkable performances on a wide range of tasks
with the aid of large-scale labeled datasets. Yet these datasets are
time-consuming and labor-exhaustive to obtain on realistic tasks. To mitigate
the requirement for labeled data, self-training is widely used in
semi-supervised learning by iteratively assigning pseudo labels to unlabeled
samples. Despite its popularity, self-training is well-believed to be
unreliable and often leads to training instability. Our experimental studies
further reveal that the bias in semi-supervised learning arises …
arxiv self-training semi-supervised semi-supervised learning supervised learning training