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Siting Li

5 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
2026

RLVE: Scaling Up Reinforcement Learning for Language Models with Adaptive Verifiable Environments

ICML 2026poster

We introduce Reinforcement Learning (RL) with Adaptive Verifiable Environments (RLVE), an approach using verifiable environments that procedurally generate problems and provide algorithmically verifiable rewards, to scale up RL for language models (LMs). RLVE enables each verifiable environment to d…

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

Exploring How Generative MLLMs Perceive More Than CLIP with the Same Vision Encoder

ACL 2025long

Recent research has shown that CLIP models struggle with visual reasoning tasks that require grounding compositionality, understanding spatial relationships, or capturing fine-grained details. One natural hypothesis is that the CLIP vision encoder does not embed essential information for these tasks…

2025

Highlighting What Matters: Promptable Embeddings for Attribute-Focused Image Retrieval

NeurIPS 2025poster

While an image is worth more than a thousand words, only a few provide crucial information for a given task and thus should be focused on. In light of this, ideal text-to-image (T2I) retrievers should prioritize specific visual attributes relevant to queries. To evaluate current retrievers on handli…

Cited by 0SourceScholar