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An Yan

9 accepted papers

2025

Large Language Model-driven Large Neighborhood Search for Large-Scale MILP Problems

ICML 2025spotlight

Large Neighborhood Search (LNS) is a widely used method for solving large-scale Mixed Integer Linear Programming (MILP) problems. The effectiveness of LNS crucially depends on the choice of the search neighborhood. However, existing strategies either rely on expert knowledge or computationally expen…

Cited by 1SourcePDFScholar
2025

Trust but Verify: Programmatic VLM Evaluation in the Wild

ICCV 2025poster

Vision-Language Models (VLMs) frequently hallucinate responses to visual queries, undermining their reliability for critical applications. However, quantifying the effect of such hallucinations in free-form responses to open-ended queries requires visually verifying each claim within the response, w…

Cited by 0SourcePDFScholar
2024

CRAG - Comprehensive RAG Benchmark

NeurIPS 2024poster

Retrieval-Augmented Generation (RAG) has recently emerged as a promising solution to alleviate Large Language Model (LLM)’s deficiency in lack of knowledge. Existing RAG datasets, however, do not adequately represent the diverse and dynamic nature of real-world Question Answering (QA) tasks. To brid…

2023

Learning Concise and Descriptive Attributes for Visual Recognition

ICCV 2023poster

Recent advances in foundation models present new opportunities for interpretable visual recognition -- one can first query Large Language Models (LLMs) to obtain a set of attributes that describe each class, then apply vision-language models to classify images via these attributes. Pioneering work s…

Cited by 101PDFcodeScholar
2023

MedEval: A Multi-Level, Multi-Task, and Multi-Domain Medical Benchmark for Language Model Evaluation

EMNLP 2023long main

Curated datasets for healthcare are often limited due to the need of human annotations from experts. In this paper, we present MedEval, a multi-level, multi-task, and multi-domain medical benchmark to facilitate the development of language models for healthcare. MedEval is comprehensive and consists…

Cited by 0SourceScholar
2023

“Nothing Abnormal”: Disambiguating Medical Reports via Contrastive Knowledge Infusion

AAAI 2023technical

Sharing medical reports is essential for patient-centered care. A recent line of work has focused on automatically generating reports with NLP methods. However, different audiences have different purposes when writing/reading medical reports – for example, healthcare professionals care more about pa…

2021

Weakly Supervised Contrastive Learning for Chest X-Ray Report Generation

EMNLP 2021finding

Radiology report generation aims at generating descriptive text from radiology images automatically, which may present an opportunity to improve radiology reporting and interpretation. A typical setting consists of training encoder-decoder models on image-report pairs with a cross entropy loss, whic…

Cited by 87SourcePDFScholar