activity
20212025
most citedSuper-convergence and Differential Privacy: Training faster with better privacy guarantees

4 citations · 14 across the 10 of their papers we have counts for

collaborators

10 papers

q-bio.QM2025

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…

stat.ME2025

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…

stat.ML2025

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…

cs.LG2024

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…

cs.LG2024★ 2 cited

An Explainable and Conformal AI Model to Detect Temporomandibular Joint Involvement in Children Suffering from Juvenile Idiopathic Arthritis

Lena Todnem Bach Christensen, Dikte Straadt, Stratos Vassis +5

Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease during childhood and adolescence. The temporomandibular joints (TMJ) are among the most frequently affected…

cs.LG2024

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…

cs.LG2024★ 4 cited

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,…

eess.SP2023★ 1 cited

Predicting Survival Time of Ball Bearings in the Presence of Censoring

Christian Marius Lillelund, Fernando Pannullo, Morten Opprud Jakobsen +1

Ball bearings find widespread use in various manufacturing and mechanical domains, and methods based on machine learning have been widely adopted in the field to monitor wear and s…

eess.IV2023★ 3 cited

Cloud K-SVD for Image Denoising

Christian Marius Lillelund, Henrik Bagger Jensen, Christian Fischer Pedersen

Cloud K-SVD is a dictionary learning algorithm that can train at multiple nodes and hereby produce a mutual dictionary to represent low-dimensional geometric structures in image da…

cs.LG2021★ 4 cited

Super-convergence and Differential Privacy: Training faster with better privacy guarantees

Osvald Frisk, Friedrich Dörmann, Christian Marius Lillelund +1

The combination of deep neural networks and Differential Privacy has been of increasing interest in recent years, as it offers important data protection guarantees to the individua…