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- W4367694107 abstract "In the big data era researchers face a series of problems. Even standard approaches/methodologies, like linear regression, can be difficult or problematic with huge volumes of data. Traditional approaches for regression in big datasets may suffer due to the large sample size, since they involve inverting huge data matrices or even because the data cannot fit to the memory. Proposed approaches are based on selecting representative subdata to run the regression. Existing approaches select the subdata using information criteria and/or properties from orthogonal arrays. In the present paper we improve existing algorithms providing a new algorithm that is based on D-optimality approach. We provide simulation evidence for its performance. Evidence about the parameters of the proposed algorithm is also provided in order to clarify the trade-offs between execution time and information gain. Real data applications are also provided." @default.
- W4367694107 created "2023-05-03" @default.
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- W4367694107 date "2023-04-29" @default.
- W4367694107 modified "2023-10-18" @default.
- W4367694107 title "Subdata selection for big data regression: an improved approach" @default.
- W4367694107 doi "https://doi.org/10.48550/arxiv.2305.00218" @default.
- W4367694107 hasPublicationYear "2023" @default.
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