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Xinwen Xu

3 accepted papers

2026

HiST: A Hierarchical Sparse Transformer for Cross-Modal Spatial Transcriptomics Modeling

ICML 2026poster

Spatial transcriptomics (ST) links gene expression with tissue morphology but remains expensive and low-throughput, motivating surrogates that infer expression from routine histology. Whole-slide H&E-to-ST inference pairs a gigapixel image with gene measurements at a sparse, irregular set of locatio…

Cited by 0SourceScholar
2025

Assessing and Mitigating Medical Knowledge Drift and Conflicts in Large Language Models

EMNLP 2025

Large Language Models (LLMs) offer transformative potential across diverse fields, yet their safe and effective deployment is hindered by inherent knowledge conflicts—stemming from temporal evolution, divergent sources, and contradictory guidelines. This challenge is particularly acute in medicine,

Cited by 0SourcePDFScholar
2025

ProtoVQA: An Adaptable Prototypical Framework for Explainable Fine-Grained Visual Question Answering

EMNLP 2025

Visual Question Answering (VQA) is increasingly used in diverse applications ranging from general visual reasoning to safety-critical domains such as medical imaging and autonomous systems, where models must provide not only accurate answers but also explanations that humans can easily understand an

Cited by 0SourcePDFScholar