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• W3180147117 abstract "From an optimizer's perspective, achieving the global optimum for a general nonconvex problem is often provably NP-hard using the classical worst-case analysis. In the case of Cox's proportional hazards model, by taking its statistical model structures into account, we identify local strong convexity near the global optimum, motivated by which we propose to use two convex programs to optimize the folded-concave penalized Cox's proportional hazards regression. Theoretically, we investigate the statistical and computational tradeoffs of the proposed algorithm and establish the strong oracle property of the resulting estimators. Numerical studies and real data analysis lend further support to our algorithm and theory." @default.
• W3180147117 created "2021-07-19" @default.
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• W3180147117 date "2021-07-06" @default.
• W3180147117 modified "2023-09-27" @default.
• W3180147117 title "A provable two-stage algorithm for penalized hazards regression" @default.
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