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Tristan Naumann

11 accepted papers

2026

Learning Sparse Visual Representations via Spatial-Semantic Factorization

ICML 2026poster

Self-supervised learning (SSL) faces a fundamental conflict between semantic understanding and image reconstruction. High-level semantic SSL (e.g., DINO) relies on global tokens that are forced to be location-invariant for augmentation alignment, a process that inherently discards the spatial coordi…

Cited by 0SourceScholar
2026

Masked-Diffusion Autoencoders for 3D Medical Vision Representation Learning

CVPR 2026

Effective medical image analysis requires representations that capture both global anatomical structure and fine-grained tissue texture. Current self-supervised approaches exhibit limited capacity to address both requirements simultaneously. Invariance-based methods learn through augmentation consis

Cited by 0SourceScholar
2026

OctoMed: Data Recipes for State-of-the-Art Multimodal Medical Reasoning

CVPR 2026

High-quality and carefully curated data is a cornerstone of training medical large language models, as it directly impacts both generalization and robustness to unseen clinical tasks. We investigate strategies for training and data curation to develop a robust multimodal reasoning model in the medic

Cited by 0SourceScholar
2024

Diagnosing Transformers: Illuminating Feature Spaces for Clinical Decision-Making

ICLR 2024poster

Pre-trained transformers are often fine-tuned to aid clinical decision-making using limited clinical notes. Model interpretability is crucial, especially in high-stakes domains like medicine, to establish trust and ensure safety, which requires human engagement. We introduce SUFO, a systematic frame…

2024

DocLens: Multi-aspect Fine-grained Medical Text Evaluation

ACL 2024long

Medical text generation aims to assist with administrative work and highlight salient information to support decision-making.To reflect the specific requirements of medical text, in this paper, we propose a set of metrics to evaluate the completeness, conciseness, and attribution of the generated te…

2023

Continual Contrastive Finetuning Improves Low-Resource Relation Extraction

ACL 2023long

Relation extraction (RE), which has relied on structurally annotated corpora for model training, has been particularly challenging in low-resource scenarios and domains. Recent literature has tackled low-resource RE by self-supervised learning, where the solution involves pretraining the entity pair…

Cited by 7SourcePDFScholar
2023

LLaVA-Med: Training a Large Language-and-Vision Assistant for Biomedicine in One Day

NeurIPS 2023spotlight

Conversational generative AI has demonstrated remarkable promise for empowering biomedical practitioners, but current investigations focus on unimodal text. Multimodal conversational AI has seen rapid progress by leveraging billions of image-text pairs from the public web, but such general-domain vi…

Cited by 828SourcePDFScholar
2023

What are the Desired Characteristics of Calibration Sets? Identifying Correlates on Long Form Scientific Summarization

ACL 2023long

Summarization models often generate text that is poorly calibrated to quality metrics because they are trained to maximize the likelihood of a single reference (MLE). To address this, recent work has added a calibration step, which exposes a model to its own ranked outputs to improve relevance or, i…

2022

Knowledge-Rich Self-Supervision for Biomedical Entity Linking

EMNLP 2022finding

Entity linking faces significant challenges such as prolific variations and prevalent ambiguities, especially in high-value domains with myriad entities. Standard classification approaches suffer from the annotation bottleneck and cannot effectively handle unseen entities. Zero-shot entity linking h…

Cited by 45SourcePDFScholar
2022

Making the Most of Text Semantics to Improve Biomedical Vision-Language Processing

ECCV 2022poster

"Multi-modal data abounds in biomedicine, such as radiology images and reports. Interpreting this data at scale is essential for improving clinical care and accelerating clinical research. Biomedical text with its complex semantics poses additional challenges in vision-language modelling compared to…

2021

Modular Self-Supervision for Document-Level Relation Extraction

EMNLP 2021main

Extracting relations across large text spans has been relatively underexplored in NLP, but it is particularly important for high-value domains such as biomedicine, where obtaining high recall of the latest findings is crucial for practical applications. Compared to conventional information extractio…

Cited by 10SourcePDFScholar