activity
20222026
most citedFoundation Models in Radiology: What, How, When, Why and Why Not

90 citations · 236 across the 18 of their papers we have counts for

collaborators

18 papers

cs.IR2026

Beyond Semantic IDs: Encoding Business-Value Ranking into Document Identifiers for Generative Retrieval

Gui Ling, Zhihong Chen, Yu Li +7

Generative Retrieval (GR) formulates retrieval as a sequence-to-sequence generation task, assigning each document a document identifier (DocID) and retrieving it through autoregres…

cs.IR2026

TSGR: Taobao Search Generative Retrieval

Tianyu Zhan, Gui Ling, Tong Xiong +9

Generative retrieval (GR) has demonstrated strong promise for industrial e-commerce search by training a single autoregressive model to directly generate the Semantic IDs (SIDs) of…

cs.IR2026

Prompt Generation Technical Report

Dan Ou, Gui Ling, Hao Wan +25

Generative retrieval has become an increasingly adopted paradigm for industrial search, recommendation, and advertising systems, delivering significant online gains. Most existing…

cs.CV2025

OpenGPT-4o-Image: A Comprehensive Dataset for Advanced Image Generation and Editing

Zhihong Chen, Xuehai Bai, Yang Shi +9

The performance of unified multimodal models for image generation and editing is fundamentally constrained by the quality and comprehensiveness of their training data. While existi…

cs.IR2025★ 1 cited

FORGE: Forming Semantic Identifiers for Generative Retrieval in Industrial Datasets

Kairui Fu, Tao Zhang, Shuwen Xiao +9

Semantic identifiers (SIDs) have gained increasing attention in generative retrieval (GR) for recommendation due to their meaningful semantic discriminability. However, current stu…

cs.CL2025

Automated Structured Radiology Report Generation

Jean-Benoit Delbrouck, Justin Xu, Johannes Moll +11

Automated radiology report generation from chest X-ray (CXR) images has the potential to improve clinical efficiency and reduce radiologists' workload. However, most datasets, incl…

cs.HC2025

Survival Games: Human-LLM Strategic Showdowns under Severe Resource Scarcity

Zhihong Chen, Yiqian Yang, Jinzhao Zhou +3

The rapid advancement of large language models (LLMs) raises critical concerns about their ethical alignment, particularly in scenarios where human and AI co-exist under the confli…

cs.CV2024

RaVL: Discovering and Mitigating Spurious Correlations in Fine-Tuned Vision-Language Models

Maya Varma, Jean-Benoit Delbrouck, Zhihong Chen +2

Fine-tuned vision-language models (VLMs) often capture spurious correlations between image features and textual attributes, resulting in degraded zero-shot performance at test time…

cs.LG2024★ 90 cited

Foundation Models in Radiology: What, How, When, Why and Why Not

Magdalini Paschali, Zhihong Chen, Louis Blankemeier +6

Recent advances in artificial intelligence have witnessed the emergence of large-scale deep learning models capable of interpreting and generating both textual and imaging data. Su…

eess.IV2024

Evaluating and Improving the Effectiveness of Synthetic Chest X-Rays for Medical Image Analysis

Eva Prakash, Jeya Maria Jose Valanarasu, Zhihong Chen +9

Purpose: To explore best-practice approaches for generating synthetic chest X-ray images and augmenting medical imaging datasets to optimize the performance of deep learning models…

cs.CV2024★ 1 cited

CheXalign: Preference fine-tuning in chest X-ray interpretation models without human feedback

Dennis Hein, Zhihong Chen, Sophie Ostmeier +8

Radiologists play a crucial role in translating medical images into actionable reports. However, the field faces staffing shortages and increasing workloads. While automated approa…

cs.CL2024★ 5 cited

Overview of the First Shared Task on Clinical Text Generation: RRG24 and "Discharge Me!"

Justin Xu, Zhihong Chen, Andrew Johnston +9

Recent developments in natural language generation have tremendous implications for healthcare. For instance, state-of-the-art systems could automate the generation of sections in…

cs.CL2024★ 7 cited

CheXpert Plus: Augmenting a Large Chest X-ray Dataset with Text Radiology Reports, Patient Demographics and Additional Image Formats

Pierre Chambon, Jean-Benoit Delbrouck, Thomas Sounack +6

Since the release of the original CheXpert paper five years ago, CheXpert has become one of the most widely used and cited clinical AI datasets. The emergence of vision language mo…

cs.CV2024★ 33 cited

Merlin: A Computed Tomography Vision-Language Foundation Model and Dataset

Louis Blankemeier, Ashwin Kumar, Joseph Paul Cohen +37

The large volume of abdominal computed tomography (CT) scans coupled with the shortage of radiologists have intensified the need for automated medical image analysis tools. Previou…

cs.CL2024★ 42 cited

GREEN: Generative Radiology Report Evaluation and Error Notation

Sophie Ostmeier, Justin Xu, Zhihong Chen +8

Evaluating radiology reports is a challenging problem as factual correctness is extremely important due to the need for accurate medical communication about medical images. Existin…

cs.CV2024★ 26 cited

A Vision-Language Foundation Model to Enhance Efficiency of Chest X-ray Interpretation

Zhihong Chen, Maya Varma, Justin Xu +20

Over 1.4 billion chest X-rays (CXRs) are performed annually due to their cost-effectiveness as an initial diagnostic test. This scale of radiological studies provides a significant…

cs.CV2023★ 20 cited

Exploiting Low-confidence Pseudo-labels for Source-free Object Detection

Zhihong Chen, Zilei Wang, Yixin Zhang

Source-free object detection (SFOD) aims to adapt a source-trained detector to an unlabeled target domain without access to the labeled source data. Current SFOD methods utilize a…

cs.CL2022★ 11 cited

Toward expanding the scope of radiology report summarization to multiple anatomies and modalities

Zhihong Chen, Maya Varma, Xiang Wan +2

Radiology report summarization (RRS) is a growing area of research. Given the Findings section of a radiology report, the goal is to generate a summary (called an Impression sectio…