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| Regressione logistica semi-supervisionata× | Regressione logistica auto-supervisionata× | |
|---|---|---|
| Campo | Apprendimento automatico | Apprendimento automatico |
| Famiglia | Machine learning | Machine learning |
| Anno di origine≠ | 1995–2000 | 2020s |
| Ideatore≠ | Nigam, K.; McCallum, A. et al. (EM variant); Yarowsky, D. (self-training) | Chen et al. (SimCLR linear evaluation protocol, 2020); logistic probe practice widely adopted across SSL literature |
| Tipo≠ | Semi-supervised classifier | Self-supervised pretraining + supervised linear classification |
| Fonte seminale≠ | Nigam, K., McCallum, A., Thrun, S., & Mitchell, T. (2000). Text classification from labeled and unlabeled documents using EM. Machine Learning, 39, 103–134. DOI ↗ | Chen, T., Kornblith, S., Norouzi, M., & Hinton, G. (2020). A Simple Framework for Contrastive Learning of Visual Representations. Proceedings of the 37th International Conference on Machine Learning (ICML), 1597–1607. link ↗ |
| Alias | SSL logistic regression, semi-supervised LR, EM logistic regression, self-training logistic classifier | SSL linear probe, contrastive pretraining with logistic classifier, self-supervised linear evaluation, SSL + logistic regression |
| Correlati | 5 | 5 |
| Sintesi≠ | Semi-supervised logistic regression extends the standard logistic classifier by incorporating unlabeled data during training. Using self-training, expectation-maximization, or label-propagation wrappers, it iteratively assigns soft labels to unlabeled examples and refines model parameters, improving generalization when labeled data are scarce relative to the full dataset. | Self-supervised logistic regression is a two-stage pipeline in which a neural encoder is first trained on abundant unlabeled data through a self-supervised pretext task — such as contrastive learning or masked prediction — and then the frozen learned representations are classified with a standard logistic regression model trained on a small labeled dataset. This linear evaluation protocol is widely used to benchmark the quality of self-supervised representations. |
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