手法を比較

	半教師ありガウス混合モデル	半教師あり学習
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2000	1970s–2006 (formalized)
提唱者	Nigam, K.; McCallum, A. K.; Thrun, S.; Mitchell, T.	Vapnik, V. N. and others (community of researchers, 1970s–2000s)
種類	Generative semi-supervised classifier	Learning paradigm
原典	Chapelle, O., Scholkopf, B., & Zien, A. (Eds.). (2006). Semi-Supervised Learning. MIT Press. ISBN: 978-0-262-03358-9	Chapelle, O., Scholkopf, B., & Zien, A. (Eds.) (2006). Semi-Supervised Learning. MIT Press. ISBN: 978-0-262-03358-9
別名	SS-GMM, semi-supervised GMM, partially labeled Gaussian mixture model, generative semi-supervised classifier	SSL, semi-supervised machine learning, transductive learning, label-efficient learning
関連	3	5
概要	The Semi-supervised Gaussian Mixture Model (SS-GMM) is a generative probabilistic classifier that fits a Gaussian mixture to both labeled and unlabeled data using the Expectation-Maximization algorithm. Labeled points constrain component assignments while unlabeled points improve density estimates, enabling effective learning when annotations are scarce.	Semi-supervised learning (SSL) is a machine learning paradigm that trains models using a small set of labeled examples together with a much larger pool of unlabeled data. By leveraging the structure inherent in unlabeled data, SSL achieves accuracy closer to fully supervised models while requiring far fewer costly manual labels — making it practical when labeling is expensive, slow, or resource-constrained.