Jämför metoder
Granska de valda metoderna sida vid sida; rader som skiljer sig är markerade.
| Semi-supervised Isolation Forest× | Semi-övervakad inlärning× | |
|---|---|---|
| Ämnesområde | Maskininlärning | Maskininlärning |
| Familj | Machine learning | Machine learning |
| Ursprungsår≠ | 2013–2020 | 1970s–2006 (formalized) |
| Upphovsperson≠ | Extended from Liu, F.T., Ting, K.M., and Zhou, Z-H. (iForest, 2008); semi-supervised variants developed by multiple authors ca. 2013–2020 | Vapnik, V. N. and others (community of researchers, 1970s–2000s) |
| Typ≠ | Ensemble anomaly detection (semi-supervised extension) | Learning paradigm |
| Ursprungskälla≠ | Görnitz, N., Kloft, M., Rieck, K., & Brefeld, U. (2013). Toward supervised anomaly detection. Journal of Artificial Intelligence Research, 46, 235–262. link ↗ | Chapelle, O., Scholkopf, B., & Zien, A. (Eds.) (2006). Semi-Supervised Learning. MIT Press. ISBN: 978-0-262-03358-9 |
| Alias | SSIF, semi-supervised iForest, label-guided Isolation Forest, partially supervised Isolation Forest | SSL, semi-supervised machine learning, transductive learning, label-efficient learning |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | Semi-supervised Isolation Forest extends the classic Isolation Forest anomaly detector by incorporating a small set of labeled anomaly (and possibly normal) examples alongside a large unlabeled dataset. This label guidance adjusts the model's anomaly scores so that known anomalies are separated more reliably, bridging the gap between fully unsupervised and fully supervised detection. | 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. |
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