collaborators

8 papers

cs.CV2026

Knowing When Not to Predict: Self Supervised Learning and Abstention for Safer DR Screening

Muskaan Chopra, Lorenz Sparrenberg, Jan H. Terheyden +1

Self-supervised learning (SSL) is now a standard way to pretrain medical image models, but performance is still mostly judged by downstream accuracy. For safety-critical screening…

cs.CL2026

Towards Reliable Machine Translation: Scaling LLMs for Critical Error Detection and Safety

Muskaan Chopra, Lorenz Sparrenberg, Rafet Sifa

Machine Translation (MT) plays a pivotal role in cross-lingual information access, public policy communication, and equitable knowledge dissemination. However, critical meaning err…

cs.CV2026

Generalizing Abstention for Noise-Robust Learning in Medical Image Segmentation

Wesam Moustafa, Hossam Elsafty, Helen Schneider +2

Label noise is a critical problem in medical image segmentation, often arising from the inherent difficulty of manual annotation. Models trained on noisy data are prone to overfitt…

cs.CV2025

From Retinal Pixels to Patients: Evolution of Deep Learning Research in Diabetic Retinopathy Screening

Muskaan Chopra, Lorenz Sparrenberg, Armin Berger +3

Diabetic Retinopathy (DR) remains a leading cause of preventable blindness, with early detection critical for reducing vision loss worldwide. Over the past decade, deep learning ha…

cs.CL2025

How Small Can You Go? Compact Language Models for On-Device Critical Error Detection in Machine Translation

Muskaan Chopra, Lorenz Sparrenberg, Sarthak Khanna +1

Large Language Models (LLMs) excel at evaluating machine translation (MT), but their scale and cost hinder deployment on edge devices and in privacy-sensitive workflows. We ask: ho…

cs.CL2025

SynCED-EnDe 2025: A Synthetic and Curated English - German Dataset for Critical Error Detection in Machine Translation

Muskaan Chopra, Lorenz Sparrenberg, Rafet Sifa

Critical Error Detection (CED) in machine translation aims to determine whether a translation is safe to use or contains unacceptable deviations in meaning. While the WMT21 English…