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| Détection d'anomalies par autoencodeur bayésien× | SVM à une classe× | |
|---|---|---|
| Domaine | Apprentissage automatique | Apprentissage automatique |
| Famille | Machine learning | Machine learning |
| Année d'origine≠ | 2014–2015 | 1999–2001 |
| Auteur d'origine≠ | Kingma, D. P. & Welling, M.; applied to anomaly detection by An & Cho | Scholkopf, B., Platt, J. C., Smola, A. J., Williamson, R. C. |
| Type≠ | Probabilistic generative model for unsupervised anomaly detection | Anomaly / novelty detection (unsupervised) |
| Source fondatrice≠ | Kingma, D. P. & Welling, M. (2014). Auto-Encoding Variational Bayes. Proceedings of the 2nd International Conference on Learning Representations (ICLR 2014). link ↗ | Scholkopf, B., Platt, J. C., Shawe-Taylor, J., Smola, A. J., & Williamson, R. C. (2001). Estimating the support of a high-dimensional distribution. Neural Computation, 13(7), 1443–1471. DOI ↗ |
| Alias | Bayesian VAE anomaly detection, probabilistic autoencoder anomaly detection, variational autoencoder anomaly detection, VAE-based outlier detection | OCSVM, one-class support vector machine, novelty SVM, unsupervised SVM |
| Apparentées≠ | 5 | 3 |
| Résumé≠ | Bayesian Autoencoder Anomaly Detection uses a Variational Autoencoder — a probabilistic generative model trained on normal data — to flag anomalies by their high reconstruction error or low likelihood under the learned distribution. By treating the latent space as a probability distribution rather than a fixed point, it delivers principled uncertainty estimates alongside each anomaly score, making it especially valuable in high-stakes detection tasks. | One-class SVM is an unsupervised anomaly and novelty detection algorithm that learns a tight boundary around normal training data in a kernel-induced feature space, flagging new observations that fall outside that boundary as outliers. Introduced by Scholkopf et al. in 1999–2001, it extends the SVM framework to the single-class setting where no labelled anomalies are available. |
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