collaborators

5 papers

cs.CL2025

Contrastive Decoding for Synthetic Data Generation in Low-Resource Language Modeling

Jannek Ulm, Kevin Du, Vésteinn Snæbjarnarson

Large language models (LLMs) are trained on huge amounts of textual data, and concerns have been raised that the limits of such data may soon be reached. A potential solution is to…

cs.CV2025

Discriminative Class Tokens for Text-to-Image Diffusion Models

Idan Schwartz, Vésteinn Snæbjarnarson, Hila Chefer +4

Recent advances in text-to-image diffusion models have enabled the generation of diverse and high-quality images. While impressive, the images often fall short of depicting subtle…

cs.LG2024

LoQT: Low-Rank Adapters for Quantized Pretraining

Sebastian Loeschcke, Mads Toftrup, Michael J. Kastoryano +2

Despite advances using low-rank adapters and quantization, pretraining of large models on consumer hardware has not been possible without model sharding, offloading during training…

cs.CL2024

Activation Scaling for Steering and Interpreting Language Models

Niklas Stoehr, Kevin Du, Vésteinn Snæbjarnarson +3

Given the prompt "Rome is in", can we steer a language model to flip its prediction of an incorrect token "France" to a correct token "Italy" by only multiplying a few relevant act…

cs.CL2024

Context versus Prior Knowledge in Language Models

Kevin Du, Vésteinn Snæbjarnarson, Niklas Stoehr +3

To answer a question, language models often need to integrate prior knowledge learned during pretraining and new information presented in context. We hypothesize that models perfor…