Selected Publications

Peer-reviewed Papers

MKG-RAG-Bench: Benchmarking Retrieval in Multimodal Knowledge Graph Augmented Generation
Xiaochen Wang, Bao Hoang, Han Liu, Ting Wang, Fenglong Ma
KDD’26

GPR: Empowering Generation with Graph-Pretrained Retriever
Xiaochen Wang, Zongyu Wu, Yuan Zhong, Xiang Zhang, Suhang Wang, Fenglong Ma
WWW’26

KAMR: Grounding Generation via Knowledge-Aligned Multi-hop Retrieval
Xiaochen Wang, Yuan Zhong, Haoyu Wang, Ting Wang, Fenglong Ma
COLM’26

MedMKG: Benchmarking Medical Knowledge Exploitation with Multimodal Knowledge Graph
Xiaochen Wang, Yuan Zhong, Lingwei Zhang, Lisong Dai, Ting Wang, Fenglong Ma
MM’26

MedDiTPro: A Prompt-Guided Diffusion Transformer for Multimodal Longitudinal Medical Data Synthesis
Yuan Zhong, Xiaochen Wang, Jiaqi Wang, Xiaokun Zhang, Fenglong Ma
KDD’25

Developing Multimodal Healthcare Foundation Model: From Data-driven to Knowledge-enhanced
Xiaochen Wang
AAAI’25

FEDKIM: Adaptive Federated Knowledge Injection into Medical Foundation Models
Xiaochen Wang*, Jiaqi Wang*, Houping Xiao, Jinghui Chen, Fenglong Ma
EMNLP’24

FEDMEKI: A Benchmark for Scaling Medical Foundation Models via Federated Knowledge Injection
Jiaqi Wang*, Xiaochen Wang*, Lingjuan Lyu, Jinghui Chen, Fenglong Ma
NeurIPS’24 (Spotlight)

Unity in Diversity: Collaborative Pre-training Across Multimodal Medical Sources
Xiaochen Wang, Junyu Luo, Jiaqi Wang, Yuan Zhong, et al.
ACL’24

Mitigating Pooling Bias in E-commerce Search via False Negative Estimation
Xiaochen Wang, Xiao Xiao, Ruhan Zhang, Xuan Zhang, Taesik Na, Tejaswi Tenneti, Haixun Wang, Fenglong Ma
KDD’24

Synthesizing Multimodal Electronic Health Records via Predictive Diffusion Models
Yuan Zhong, Xiaochen Wang, Jiaqi Wang, Xiaokun Zhang, et al.
KDD’24

Hierarchical Pretraining on Multimodal Electronic Health Records
Xiaochen Wang, Junyu Luo, Jiaqi Wang, Ziyi Yin, Suhan Cui, Yuan Zhong, et al.
EMNLP’23

pADR: Towards Personalized Adverse Drug Reaction Prediction
Junyu Luo, Cheng Qian, Xiaochen Wang, Lucas Glass, Fenglong Ma
CIKM’23

Sentence-Level Resampling for Named Entity Recognition
Xiaochen Wang, Yue Wang
NAACL’22

Enabling Scientific Reproducibility through FAIR Data Management
Xiaochen Wang, Yue Wang, José-Luis Ambite, Abhishek Appaji, et al.
AMIA’22

Extreme Systematic Reviews: A Large Literature Screening Dataset
Jingwen Hou*, Xiaochen Wang*, Jean-Jacques Dubois, R. Byron Rice, Amanda Haddock, Yue Wang
CIKM’22

Preprints & Submissions

Synthesizing Longitudinal Multimodal Clinical Data via Staged Adaptation of Any-to-Any Models
Yuan Zhong, Ziyi Yin, Xiaochen Wang, Yuning Xie, Jing Gao, Fenglong Ma
Submitted to NeurIPS’26