7 papers
Overcoming Dependent Censoring in the Evaluation of Survival Models
Christian Marius Lillelund, Shi-ang Qi, Russell Greiner
Dependent censoring occurs when the event time and censoring time are not conditionally independent given the observed covariates. This complicates survival model evaluation becaus…
Position: Stop Chasing the C-index when Evaluating Survival Analysis Models
Christian Marius Lillelund, Shi-ang Qi, Russell Greiner +1
The current state of evaluation in survival analysis is plagued by the persistent use of evaluation metrics in ways that are misaligned with the stated modeling objective. In addit…
A meaningful prediction of functional decline in amyotrophic lateral sclerosis based on multi-event survival analysis
Christian Marius Lillelund, Sanjay Kalra, Russell Greiner
Amyotrophic lateral sclerosis (ALS) is a degenerative disorder of the motor neurons that causes progressive paralysis in patients. Current treatment options aim to prolong survival…
MENSA: A Multi-Event Network for Survival Analysis with Trajectory-based Likelihood Estimation
Christian Marius Lillelund, Ali Hossein Gharari Foomani, Weijie Sun +2
Most existing time-to-event methods focus on either single-event or competing-risks settings, leaving multi-event scenarios relatively underexplored. In many healthcare application…
RULSurv: A probabilistic survival-based method for early censoring-aware prediction of remaining useful life in ball bearings
Christian Marius Lillelund, Fernando Pannullo, Morten Opprud Jakobsen +2
Predicting the remaining useful life (RUL) of ball bearings is an active area of research, where novel machine learning techniques are continuously being applied to predict degrada…
Efficient Training of Probabilistic Neural Networks for Survival Analysis
Christian Marius Lillelund, Martin Magris, Christian Fischer Pedersen
Variational Inference (VI) is a commonly used technique for approximate Bayesian inference and uncertainty estimation in deep learning models, yet it comes at a computational cost,…