Lei Chen

Knowledge Base Group

Publications

26 publications · Most recent first

  1. GRACE: A Dynamic Coreset Selection Framework for Large Language Model OptimizationTianhao Tang, Haoyang Li, Lei ChenSIGMOD, 2027.
  2. Robust Model Selection for Graph Neural Networks via Knowledge-Guided Evidence LearningMingtao Zhang, Haoyang Li, Yang Yang, Yuming Xu, Nicole Hu, Chen Jason Zhang, Lei Chen, Qing LiICDE, 2027.
  3. MGRAG: Semantic Subgraph Matching and Graph-Aware Caching for Multimodal Retrieval-Augmented GenerationYubo Wang, Haoyang Li, Lei ChenVLDB, 2026.
  4. GraphAgent: An Effective Knowledge-Guided GNN Model Selection SystemMingtao Zhang, Haoyang Li, Yuming Xu, Nicole Hu, Peng Cheng, Chen Jason Zhang, Qing Li, Lei ChenVLDB Demo, 2026.
  5. AGRAG: Advanced Graph-based Retrieval-Augmented Generation for LLMsYubo Wang, Haoyang Li, Fei Teng, Lei ChenICDE, 2026.
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  1. GORAG: Graph-based Online Retrieval Augmented Generation for Dynamic Few-shot Social Media Text ClassificationYubo Wang, Haoyang Li, Fei Teng, Lei ChenWWW, 2026.
  2. Navigating the Mirage: A Dual-Path Agentic Framework for Robust Misleading Chart Question AnsweringYanjie Zhang, Yafei Li, Rui Sheng, Zixin Chen, Yanna Lin, Huamin Qu, Lei Chen, Yushi SunMM, 2026.
  3. A Survey of Secure Retrieval-Augmented GenerationYuming Xu, Mingtao Zhang, Zhuohan Ge, Haoyang Li, Nicole Hu, Yongqi Zhang, Zhiyuan Wen, Chen Jason Zhang, Qing Li, Lei ChenFindings of EMNLP, 2026.
  4. LLMLog: Advanced Log Template Generation via LLM-driven Multi-Round AnnotationFei Teng, Haoyang Li, Lei ChenVLDB, 2025.
  5. When Speed meets Accuracy: an Efficient and Effective Graph Model for Temporal Link PredictionHaoyang Li, Yuming Xu, Yiming Li, Hanmo Liu, Darian Li, Chen Jason Zhang, Lei Chen, Qing LiVLDB, 2025.
  6. Understanding the Embedding Models on Hyper-relational Knowledge GraphsYubo Wang, Shimin Di, Zhili Wang, Haoyang Li, Fei Teng, Hao Xin, Lei ChenCIKM, 2025.
  7. SIT: Selective Incremental Training for Dynamic Knowledge Graph EmbeddingZhifeng Jia, Hanmo Liu, Haoyang Li, Lei ChenICDE, 2025.
  8. A Survey on Large Language Model Acceleration based on KV Cache ManagementHaoyang Li, Yiming Li, Anxin Tian, Tianhao Tang, Zhanchao Xu, Xuejia Chen, Nicole Hu, Wei Dong, Qing Li, Lei ChenTMLR, 2025.
  9. Exposing Numeracy Gaps: A Benchmark to Evaluate Fundamental Numerical Abilities in Large Language ModelsHaoyang Li, Xuejia Chen, Zhanchao Xu, Darian Li, Nicole Hu, Fei Teng, Yiming Li, Luyu Qiu, Chen Jason Zhang, Qing Li, Lei ChenFindings of ACL, 2025.
  10. Dynamic Service Knowledge Base Construction at WeChatHaoyang Li, Ziyuan Zhao, Xueling Lin, Alexander Zhou, Hao Xin, Fengmei Jin, Qiang Yan, Tiezheng Mao, Zijian Li, Qing Li, Lei ChenADMA, 2025.
  11. KERAG: Knowledge-Enhanced Retrieval-Augmented Generation for Advanced Question AnsweringYushi Sun, Kai Sun, Yifan Ethan Xu, Xiao Yang, Xin Luna Dong, Nan Tang, Lei ChenFindings of EMNLP, 2025.
  12. Are Large Language Models a Good Replacement of Taxonomies?Yushi Sun, Hao Xin, Kai Sun, Yifan Ethan Xu, Xiao Yang, Xin Luna Dong, Nan Tang, Lei ChenVLDB, 2024.
  13. Fight Fire with Fire: Towards Robust Graph Neural Networks on Dynamic Graphs via Actively DefenseHaoyang Li, Shimin Di, Calvin Hong Yi Li, Lei Chen, Xiaofang ZhouVLDB, 2024.
  14. Retrieval-based Disentangled Representation Learning with Natural Language SupervisionJiawei Zhou, Xiaoguang Li, Lifeng Shang, Xin Jiang, Qun Liu, Lei ChenICLR, 2024.
  15. KGLink: A column type annotation method that combines knowledge graph and pre-trained language modelYubo Wang, Hao Xin, Lei ChenICDE, 2024.
  16. Cross-domain-aware Worker Selection with Training for Crowdsourced AnnotationYushi Sun, Jiachuan Wang, Peng Cheng, Libin Zheng, Lei Chen, Jian YinICDE, 2024.
  17. KartGPS: Knowledge Base Update with Temporal Graph Pattern-based Semantic RulesHao Xin, Lei ChenICDE, 2024.
  18. CRAG — Comprehensive RAG BenchmarkXiao Yang*, Kai Sun*, Hao Xin*, Yushi Sun*, Nikita Bhalla, Xiangsen Chen, Sajal Choudhary, Rongze Daniel Gui, Ziran Will Jiang, Ziyu Jiang, Lingkun Kong, Brian Moran, Jiaqi Wang, Yifan Ethan Xu, An Yan, Chenyu Yang, Eting Yuan, Hanwen Zha, Nan Tang, Lei Chen, Nicolas Scheffer, Yue Liu, Nirav Shah, Rakesh Wanga, Anuj Kumar, Wen-tau Yih, Xin Luna DongNeurIPS, 2024.
  19. RECA: Related Tables Enhanced Column Semantic Type Annotation FrameworkYushi Sun, Hao Xin, Lei ChenVLDB, 2023.
  20. AIR: Adaptive Incremental Embedding Updating for Dynamic Knowledge GraphsZhifeng Jia, Haoyang Li, Lei ChenDASFAA, 2023.
  21. Triple-Fact Retriever: An explainable reasoning retrieval model for multi-hop QA problemChengmin Wu, Enrui Hu, Ke Zhan, Lan Luo, Xinyu Zhang, Hao Jiang, Qirui Wang, Zhao Cao, Fan Yu, Lei ChenICDE, 2022.