Methoden vergleichen
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| Bayesian Bagging× | Bayesian Boosting× | Bayesian Random Forest× | Boosting× | |
|---|---|---|---|---|
| Fachgebiet | Maschinelles Lernen | Maschinelles Lernen | Maschinelles Lernen | Maschinelles Lernen |
| Familie | Machine learning | Machine learning | Machine learning | Machine learning |
| Entstehungsjahr≠ | 2001 | 1999–2010 | 2015 | 1990–1997 |
| Urheber≠ | Clyde, M. & Lee, H. (building on Rubin's Bayesian bootstrap, 1981) | Ridgeway, G.; Chipman, H. A. et al. | Taddy, M. et al. | Schapire, R. E.; Freund, Y. |
| Typ≠ | Ensemble (Bayesian bootstrap aggregation) | Probabilistic ensemble (Bayesian interpretation of boosting) | Bayesian ensemble of decision trees | Sequential ensemble (iterative reweighting) |
| Wegweisende Quelle≠ | Clyde, M. & Lee, H. (2001). Bagging and the Bayesian bootstrap. In T. Richardson & T. Jaakkola (Eds.), Proceedings of the Eighth International Workshop on Artificial Intelligence and Statistics (AISTATS 2001). link ↗ | Ridgeway, G. (1999). The state of boosting. Computing Science and Statistics, 31, 172–181. link ↗ | Taddy, M., Chen, C., Yu, J., & Wyle, M. (2015). Bayesian and Empirical Bayesian Forests. Proceedings of the 32nd International Conference on Machine Learning (ICML 2015), PMLR 37, 967–976. link ↗ | Freund, Y. & Schapire, R. E. (1997). A decision-theoretic generalization of on-line learning and an application to boosting. Journal of Computer and System Sciences, 55(1), 119–139. DOI ↗ |
| Aliasnamen | Bayesian bootstrap aggregation, BB-ensemble, Bayesian model averaging via bootstrap, Bayesian bagged ensemble | Bayesian ensemble boosting, probabilistic boosting, Bayesian additive model, Bayesian boosted ensemble | Bayesian Forest, BRF, Empirical Bayesian Forest, posterior random forest | AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble |
| Verwandt≠ | 6 | 5 | 5 | 6 |
| Zusammenfassung≠ | Bayesian Bagging replaces the classical bootstrap with the Bayesian bootstrap — drawing Dirichlet-distributed weights over training observations rather than sampling with replacement — and trains an ensemble of base learners under those weights. The result is a principled ensemble that approximates a Bayesian posterior over predictions, yielding calibrated uncertainty estimates alongside strong predictive accuracy. | Bayesian boosting integrates probabilistic Bayesian inference with boosting ensemble techniques, combining multiple weak learners while maintaining full uncertainty quantification over predictions. Unlike standard gradient boosting that produces a single point estimate, Bayesian boosting yields a posterior distribution over the ensemble output, enabling calibrated confidence intervals alongside predictions. | Bayesian Random Forest extends the classical random forest by placing a prior distribution over tree structures and leaf parameters, then sampling or approximating the posterior over that ensemble. The result is a set of predictions accompanied by calibrated uncertainty estimates — a capability standard random forests lack — making it valuable when knowing how confident the model is matters as much as the prediction itself. | Boosting is a sequential ensemble technique that converts many simple, barely-better-than-chance learners into a single highly accurate model by repeatedly focusing training on the examples that previous learners got wrong, then combining all learners with weights proportional to their individual accuracy. |
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