AI RESEARCH
A Structured Nonparametric Framework for Nonlinear Accelerated Failure Time Models (KAN-AFT)
arXiv CS.LG
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ArXi:2512.20305v2 Announce Type: replace-cross Accelerated failure time (AFT) models provide a direct and interpretable time-scale description of covariate effects in lifetime data analysis, but classical formulations rely on linear predictors and are. therefore. limited in their ability to represent nonlinear relationships. Moreover, in heterogeneous clinical settings with complex covariate structures and varying censoring mechanisms, standard survival models such as the Cox proportional hazards model or AFT formulations may be inadequate due to restrictive structural assumptions.