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| Tập hợp xếp chồng Bayes× | Boosting× | |
|---|---|---|
| Lĩnh vực | Học máy | Học máy |
| Họ | Machine learning | Machine learning |
| Năm ra đời≠ | 2018 | 1990–1997 |
| Người khởi xướng≠ | Yao, Y.; Vehtari, A.; Simpson, D.; Gelman, A. | Schapire, R. E.; Freund, Y. |
| Loại≠ | Bayesian ensemble combination | Sequential ensemble (iterative reweighting) |
| Công trình gốc≠ | Yao, Y., Vehtari, A., Simpson, D., & Gelman, A. (2018). Using stacking to average Bayesian predictive distributions. Bayesian Analysis, 13(3), 917–1007. DOI ↗ | 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 ↗ |
| Tên gọi khác | Bayesian stacking, Bayesian model stacking, stacking with Bayesian weights, predictive distribution stacking | AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble |
| Liên quan | 6 | 6 |
| Tóm tắt≠ | Bayesian stacking combines the predictive distributions of several base models by finding non-negative weights that maximise the leave-one-out log predictive score of the mixture. Formalised by Yao, Vehtari, Simpson, and Gelman (2018), it yields a single calibrated predictive distribution that is provably at least as good as any single constituent model under cross-validation. | 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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