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- W4226077013 abstract "In this paper, we propose a general subgroup analysis framework based on semiparametric additive mixed effect models in longitudinal analysis, which can identify subgroups on each covariate and estimate the corresponding regression functions simultaneously. In addition, the proposed procedure is applicable for both balanced and unbalanced longitudinal data. A backfitting combined with k-means algorithm is developed to estimate each semiparametric additive component across subgroups and detect subgroup structure on each covariate respectively. The actual number of groups is estimated by minimizing a Bayesian information criteria. The numerical studies demonstrate the efficacy and accuracy of the proposed procedure in identifying the subgroups and estimating the regression functions. In addition, we illustrate the usefulness of our method with an application to PBC data and provide a meaningful partition of the population." @default.
- W4226077013 created "2022-05-05" @default.
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- W4226077013 date "2021-12-01" @default.
- W4226077013 modified "2023-09-25" @default.
- W4226077013 title "Subgroup Analysis for Longitudinal data via Semiparametric Additive Mixed Effect Model" @default.
- W4226077013 hasPublicationYear "2021" @default.
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