摘要：We introduce a cocktail algorithm, a good mixture of coordinate decent, the majorization-minimization principle and the strong rule, for computing the solution paths of the elastic net penalized Cox’s proportional hazards model. The cocktail algorithm enjoys a proven convergence property. We have implemented the cocktail algorithm in an R package fastcox. Numerical examples show that cocktail is comparable to coxnet in speed and often delivers better quality solutions.
关键词：Cox’s model; coordinate descent; elastic net; MM principle; strong rule
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