方法对比

	在线支持向量机	在线梯度提升
领域	机器学习	机器学习
方法族	Machine learning	Machine learning
起源年份	2005–2011	2011–2015
提出者	Shalev-Shwartz, Singer, et al. (Pegasos); Bordes, Bottou et al. (LASVM)	Grubb, A. & Bagnell, J. A.; Beygelzimer, A. et al.
类型	Online kernel classifier	Online ensemble (sequential boosting on streaming data)
开创性文献	Shalev-Shwartz, S., Singer, Y., Srebro, N., & Cotter, A. (2011). Pegasos: Primal estimated sub-gradient solver for SVM. Mathematical Programming, 127(1), 3–30.	Grubb, A. & Bagnell, J. A. (2011). Generalized Boosting Algorithms for Convex Optimization. Proceedings of the 28th International Conference on Machine Learning (ICML 2011), 1209–1216.
别名	Online SVM, Incremental SVM, LASVM, Pegasos SVM	OGB, streaming gradient boosting, incremental gradient boosting, online boosting with gradient descent
相关	3	6
摘要	Online SVM adapts the classical support vector machine to streaming or sequentially arriving data by updating the decision boundary one example at a time rather than solving a global quadratic program. Algorithms such as Pegasos and LASVM make this tractable at large scale, preserving the margin-maximising spirit of SVMs with sub-linear time per update.	Online Gradient Boosting adapts the gradient boosting framework for streaming settings where data arrives one sample at a time rather than as a fixed batch. At each step the model computes a pseudo-residual for the incoming observation and updates a weak learner in place, growing an additive ensemble without storing or revisiting past data. This makes it suitable for real-time prediction and large-scale streaming pipelines where retraining from scratch is infeasible.