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	Apprendimento Semi-Supervisionato d'Insieme	Apprendimento Autocontrollato
Campo	Apprendimento automatico	Apprendimento automatico
Famiglia	Machine learning	Machine learning
Anno di origine	1998–2005	2018–2020
Ideatore	Blum & Mitchell (co-training); Zhou & Li (tri-training)	LeCun, Y. and community (formalized ~2018–2020)
Tipo	Ensemble + semi-supervised hybrid paradigm	Representation learning paradigm
Fonte seminale	Zhou, Z.-H., & Li, M. (2005). Tri-training: Exploiting unlabeled data using three classifiers. IEEE Transactions on Knowledge and Data Engineering, 17(11), 1529–1541.	LeCun, Y. & Misra, I. (2022). Self-supervised learning: The dark matter of intelligence. Meta AI Blog. https://ai.facebook.com/blog/self-supervised-learning-the-dark-matter-of-intelligence/
Alias	semi-supervised ensemble, SSL ensemble, ensemble-based SSL, co-training ensemble	SSL, self-supervised pre-training, pretext-task learning, unsupervised representation learning
Correlati	6	3
Sintesi	Ensemble semi-supervised learning combines multiple base learners with the semi-supervised paradigm, exploiting both a small labeled set and a large pool of unlabeled data. By letting diverse classifiers teach each other through pseudo-labeling or co-training, the ensemble improves generalization far beyond what either approach alone could achieve with limited labels.	Self-supervised learning (SSL) is a machine-learning paradigm that generates its own supervisory signal directly from unlabeled data by defining an auxiliary pretext task — such as predicting masked words, rotating images, or contrasting augmented views — and uses the learned representations as a powerful starting point for downstream tasks with minimal labeled examples.