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| Aprenentatge bayesià semisupervisat× | Model de Mescla Gaussiana Bayesiana× | |
|---|---|---|
| Camp | Aprenentatge automàtic | Aprenentatge automàtic |
| Família | Machine learning | Machine learning |
| Any d'origen≠ | 2003–2006 | 1999–2006 |
| Autor original≠ | Chapelle, Scholkopf & Zien; Zhu, Ghahramani & Lafferty | Attias, H.; Bishop, C. M. |
| Tipus≠ | Probabilistic semi-supervised framework | Probabilistic clustering / density estimation |
| Font seminal≠ | Chapelle, O., Scholkopf, B., & Zien, A. (Eds.). (2006). Semi-Supervised Learning. MIT Press. ISBN: 978-0-262-03358-9 | Bishop, C. M. (2006). Pattern Recognition and Machine Learning (Ch. 10). Springer. ISBN: 978-0-387-31073-2 |
| Àlies | Bayesian SSL, probabilistic semi-supervised learning, generative semi-supervised model, Bayesian transductive learning | Bayesian GMM, Variational Gaussian Mixture, VBGMM, Dirichlet Process Gaussian Mixture |
| Relacionats≠ | 6 | 4 |
| Resum≠ | Bayesian semi-supervised learning is a probabilistic framework that uses both a small labeled dataset and a larger pool of unlabeled observations to infer model parameters and make predictions. By treating missing labels as latent variables and placing priors over parameters, it naturally quantifies uncertainty while leveraging unlabeled data to improve generalization. | The Bayesian Gaussian Mixture Model places prior distributions over all mixture parameters and infers their posteriors — typically via Variational Bayes or MCMC — rather than fitting fixed point estimates. This yields principled uncertainty quantification, automatic selection of the effective number of components, and resistance to overfitting small datasets. |
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