مقایسهٔ روشها
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| تقویت گرادیان نیمهنظارتی× | جنگل تصادفی نیمهنظارتشده× | |
|---|---|---|
| حوزه | یادگیری ماشین | یادگیری ماشین |
| خانواده | Machine learning | Machine learning |
| سال پیدایش≠ | 2006–2010s | 2009 |
| پدیدآور≠ | Chapelle, Scholkopf & Zien (eds.); applied to GBM variants in subsequent literature | Leistner, C., Saffari, A., Santner, J., & Bischof, H. |
| نوع≠ | Semi-supervised ensemble (self-training + gradient boosted trees) | Semi-supervised ensemble classifier |
| منبع بنیادین≠ | Yarowsky, D. (1995). Unsupervised word sense disambiguation rivaling supervised methods. Proceedings of ACL 1995, 189–196. (Foundational self-training framework underlying pseudo-label approaches.) link ↗ | Leistner, C., Saffari, A., Santner, J., & Bischof, H. (2009). Semi-supervised random forests. In Proceedings of the IEEE 12th International Conference on Computer Vision (ICCV), pp. 506–513. IEEE. DOI ↗ |
| نامهای دیگر | pseudo-label gradient boosting, self-training GBM, semi-supervised GBT, label-propagation boosting | SSL-RF, semi-supervised forest, label-propagation random forest, self-training random forest |
| مرتبط≠ | 6 | 3 |
| خلاصه≠ | Semi-supervised gradient boosting combines gradient boosted trees with self-training or pseudo-labeling to exploit large pools of unlabeled data alongside a small labeled set. An initial GBM fit on labeled data assigns confident predictions to unlabeled examples; those pseudo-labeled points are folded back into training and the model is re-boosted, iterating until convergence. This allows practitioners to harness cheap unlabeled data when labels are scarce or expensive. | Semi-supervised Random Forest (SSL-RF) extends the classic Random Forest by exploiting both labeled and unlabeled training examples. When labeling data is expensive or time-consuming, SSL-RF assigns tentative pseudo-labels to unlabeled observations through the forest itself, then retrains on the enriched dataset, progressively improving accuracy without requiring additional human annotation. |
| ScholarGateمجموعهداده ↗ |
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