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Contrastive Credibility Propagation for Reliable Semi-Supervised Learning
April 3, 2024, 4:43 a.m. | Brody Kutt, Pralay Ramteke, Xavier Mignot, Pamela Toman, Nandini Ramanan, Sujit Rokka Chhetri, Shan Huang, Min Du, William Hewlett
cs.LG updates on arXiv.org arxiv.org
Abstract: Producing labels for unlabeled data is error-prone, making semi-supervised learning (SSL) troublesome. Often, little is known about when and why an algorithm fails to outperform a supervised baseline. Using benchmark datasets, we craft five common real-world SSL data scenarios: few-label, open-set, noisy-label, and class distribution imbalance/misalignment in the labeled and unlabeled sets. We propose a novel algorithm called Contrastive Credibility Propagation (CCP) for deep SSL via iterative transductive pseudo-label refinement. CCP unifies semi-supervised learning and …
abstract algorithm arxiv benchmark class craft cs.lg data datasets distribution error five labels making propagation semi-supervised semi-supervised learning set ssl supervised learning type world
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