Journal of Quality and Reliability Engineering / 2015 / Article / Alg 3

Research Article

Variable Selection Methods for Right-Censored Time-to-Event Data with High-Dimensional Covariates

Algorithm 3

SSG algorithm.
Step  1. for = 1 to do
Step  2.  Split the data into equally sized subsets
Step  3.  Compose the dataset for each subset
Step  4.  Calculate over the for each subset
Step  5.  Compare and with log-rank test and save the test score for each subset one by one
Step  6.  Select a subset with the highest test score
Step  7.   Save the test score for variables in the selected subset as
Step  8. end for
Step  9. Assume = as the reverse variable efficiency vector where initially each array
   as the cumulative contribution score corresponding to a variable is zero
Step  10. for = 1 to do
Step  11.  for = 1 to do
Step  12.  Add the value of to the cumulative contribution score of the variable
     based on its identification number =
    end for
Step  13. end for
Step  14. Return = as the variable inefficiency vector

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