We describe a new approach to estimating relative risks in time-to-event prediction problems with censored data in a fully parametric manner. Our approach does not require making strong assumptions of constant baseline hazard of the underlying survival distribution, as required by the Cox-proportional hazard model. By jointly learning deep nonlinear representations of the input covariates, we demonstrate the benefits of our approach when used to estimate survival risks through extensive experimentation on multiple real world datasets with different levels of censoring. We further demonstrate advantages of our model in the competing risks scenario. To the best of our knowledge, this is the first work involving fully parametric estimation of survival times with competing risks in the presence of censoring.

本文介绍一种新的参数方法来评估具有截尾数据的时间事件预测问题中的相对风险，通过联合学习输入协变量的深度非线性表示，我们展示了我们的方法在多个不同程度的截尾实际世界数据集上估算生存风险的优势，并证明我们的模型在竞争风险情景中的优势。据我们所知，这是在存在截尾时进行全参数生存时间与竞争风险估计的第一项研究。

深度生存机器: 有竞争风险的被审查数据的完全参数生存回归和表征学习