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- W4387635393 abstract "To ensure privacy protection and alleviate computational burden, we propose a Poisson-subsampling based distributed estimation procedure for the Cox model with massive survival datasets from multi-centered, decentralized sources. The proposed estimator is computed based on optimal subsampling probabilities that we derived and enables transmission of subsample-based summary level statistics between different storage sites with only one round of communication. For inference, the asymptotic properties of the proposed estimator were rigorously established. An extensive simulation study demonstrated that the proposed approach is effective. The methodology was applied to analyze a large dataset from the U.S. airlines." @default.
- W4387635393 created "2023-10-14" @default.
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- W4387635393 date "2023-10-12" @default.
- W4387635393 modified "2023-10-15" @default.
- W4387635393 title "Distributed Estimation for Large-Scale Cox Regression with Poisson Subsampling" @default.
- W4387635393 doi "https://doi.org/10.48550/arxiv.2310.08208" @default.
- W4387635393 hasPublicationYear "2023" @default.
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