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	Apprendimento Semi-Supervisionato d'Insieme	Apprendimento per trasferimento
Campo	Apprendimento automatico	Apprendimento automatico
Famiglia	Machine learning	Machine learning
Anno di origine	1998–2005	2010 (formalized); 1990s (early roots)
Ideatore	Blum & Mitchell (co-training); Zhou & Li (tri-training)	Pan, S. J. & Yang, Q. (survey); Bengio, Y. (deep learning framing)
Tipo	Ensemble + semi-supervised hybrid paradigm	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.	Pan, S. J., & Yang, Q. (2010). A Survey on Transfer Learning. IEEE Transactions on Knowledge and Data Engineering, 22(10), 1345–1359.
Alias	semi-supervised ensemble, SSL ensemble, ensemble-based SSL, co-training ensemble	TL, domain adaptation, fine-tuning, pre-trained model adaptation
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.	Transfer learning is a machine learning paradigm in which knowledge gained from training a model on a source task or domain is reused to improve learning on a different but related target task or domain. It is especially powerful when labeled data for the target task is scarce, and it underlies most modern deep learning applications in computer vision, natural language processing, and beyond.