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. Author manuscript; available in PMC: 2018 Oct 18.
Published in final edited form as: Electron J Stat. 2017 Oct 18;11(2):3927–3953. doi: 10.1214/17-EJS1305

Table 2.

Analysis of non-small-cell lung cancer data: Mean (standard deviation) of value function

kernel RIST-R1 RIST-R2 ICO DR Cox
Linear 3.641 (0.144) 3.641 (0.138) 3.633 (0.158) 3.590 (0.174) 3.582 (0.158)
Gaussian 3.611 (0.215) 3.615 (0.220) 3.302 (0.221) 3.470 (0.233)

RIST-R1 and RIST-R2: using the estimated R1 and R2 respectively as weights, while the conditional expectations are estimated using recursively imputed survival trees; ICO: inverse probability of censoring weighted learning; DR: doubly robust outcome weighted learning; Cox: Cox proportional hazards model using covariate-treatment interactions.