Regularized Least Square Kernel Regression for Streaming Data
Regularized Least Square Kernel Regression for Streaming Data
复制标题
流数据的正则化最小二乘核回归
DOI:
--
复制
发表时间:
--
影响因子:
1
通讯作者:
Qiang Wu
中科院分区:
文献类型:
--
作者:
Xiaoqing Zheng;Hongwei Sun;Qiang Wu
We study the use of kernel ridge regression (KRR) in the block-wise streaming data..The algorithm works in an online manner: when a new data block comes in, the algorithm computes an.local estimator based on the incoming data block and updates the predictive model by weighted average.of all local estimators. Assuming the block data sizes increase at a mild rate and the regularization.parameters are selected adaptively according to the sample size of all available data at the time of.updating the model, we prove the convergence of the average KRR estimator. The rate is optimal.when the regression function can be well approximated by the reproducing kernel Hilbert space in the.L2 sense.