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• W4225126445 abstract "In oncology studies, it is important to understand and characterize disease heterogeneity among patients so that patients can be classified into different risk groups and one can identify high-risk patients at the right time. This information can then be used to identify a more homogeneous patient population for developing precision medicine. In this paper, we propose a mixture survival tree approach for direct risk classification. We assume that the patients can be classified into a pre-specified number of risk groups, where each group has distinct survival profile. Our proposed tree-based methods are devised to estimate latent group membership using an EM algorithm. The observed data log-likelihood function is used as the splitting criterion in recursive partitioning. The finite sample performance is evaluated by extensive simulation studies and the proposed method is illustrated by a case study in breast cancer." @default.
• W4225126445 created "2022-05-01" @default.
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• W4225126445 date "2022-04-29" @default.
• W4225126445 modified "2023-09-23" @default.
• W4225126445 title "Mixture survival trees for cancer risk classification" @default.
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• W4225126445 doi "https://doi.org/10.1007/s10985-022-09552-w" @default.
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• W4225126445 hasPublicationYear "2022" @default.
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