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- W2911111822 abstract "We investigate the distributed learning with coefficient-based regularization scheme under the framework of kernel regression methods. Compared with the classical kernel ridge regression (KRR), the algorithm under consideration does not require the kernel function to be positive semi-definite and hence provides a simple paradigm for designing indefinite kernel methods. The distributed learning approach partitions a massive data set into several disjoint data subsets, and then produces a global estimator by taking an average of the local estimator on each data subset. Easy exercisable partitions and performing algorithm on each subset in parallel lead to a substantial reduction in computation time versus the standard approach of performing the original algorithm on the entire samples. We establish the first mini-max optimal rates of convergence for distributed coefficient-based regularization scheme with indefinite kernels. We thus demonstrate that compared with distributed KRR, the concerned algorithm is more flexible and effective in regression problem for large-scale data sets." @default.
- W2911111822 created "2019-01-25" @default.
- W2911111822 creator A5032783737 @default.
- W2911111822 date "2019-09-23" @default.
- W2911111822 modified "2023-10-10" @default.
- W2911111822 title "Distributed learning with indefinite kernels" @default.
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- W2911111822 doi "https://doi.org/10.1142/s021953051850032x" @default.
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