activity
20242026
most citedPaths-over-Graph: Knowledge Graph Empowered Large Language Model Reasoning

2 citations · 3 across the 9 of their papers we have counts for

collaborators

10 papers

cs.CL2026

SkillZip: Contract-Preserving Graph Compression for Scalable Agent Skill Libraries

Xingyu Tan, Xiaoyang Wang, Qing Liu +4

Large Language Models (LLMs) increasingly act as agents whose procedural knowledge is stored in reusable skill packages and loaded at inference time. As skill libraries grow, a cen…

cs.AI2026

HyperAgent: Planning and Acting over Tool-Schema Hypergraphs for Tool-Use LLM Agents

Zian Zhai, Xingyu Tan, Gaowang Zou +2

Large language model (LLM) agents increasingly rely on external tools to complete complex real-world tasks. However, reliable tool-use planning remains challenging due to the limit…

cs.CL2026

Weaving Multi-Source Evidence for Biomedical Reasoning: The BioMedHop Benchmark and BioWeave Framework

Xingyu Tan, Shiyuan Liu, Xiaoyang Wang +5

Biomedical question answering (QA) increasingly requires reasoning over interacting entities, where supporting evidence is scattered across biomedical knowledge graphs, literature…

cs.CL2026

Trace Only What You Need: Structure-Aware On-Demand Hypergraph Memory for Long-Document Question Answering

Xiangjun Zai, Xingyu Tan, Chen Chen +2

Long-document question answering (QA) requires large language models (LLMs) to reason over evidence scattered across lengthy documents, where answers often depend on event order, s…

cs.CL2026

PrivGemo: Privacy-Preserving Dual-Tower Graph Retrieval for Empowering LLM Reasoning with Memory Augmentation

Xingyu Tan, Xiaoyang Wang, Qing Liu +4

Knowledge graphs (KGs) provide structured evidence that can ground large language model (LLM) reasoning for knowledge-intensive question answering. However, many practical KGs are…

cs.CL2025

MemoTime: Memory-Augmented Temporal Knowledge Graph Enhanced Large Language Model Reasoning

Xingyu Tan, Xiaoyang Wang, Qing Liu +4

Large Language Models (LLMs) have achieved impressive reasoning abilities, but struggle with temporal understanding, especially when questions involve multiple entities, compound o…

cs.CL2025★ 1 cited

PRoH: Dynamic Planning and Reasoning over Knowledge Hypergraphs for Retrieval-Augmented Generation

Xiangjun Zai, Xingyu Tan, Xiaoyang Wang +3

Knowledge Hypergraphs (KHs) have recently emerged as a knowledge representation for retrieval-augmented generation (RAG), offering a paradigm to model multi-entity relations into a…

cs.LG2025

Graph is a Natural Regularization: Revisiting Vector Quantization for Graph Representation Learning

Zian Zhai, Fan Li, Xingyu Tan +2

Vector Quantization (VQ) has recently emerged as a promising approach for learning compressed and discrete representations for graph-structured data. However, a fundamental challen…

cs.CL2025

HydraRAG: Structured Cross-Source Enhanced Large Language Model Reasoning

Xingyu Tan, Xiaoyang Wang, Qing Liu +4

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by incorporating external knowledge. Current hybrid RAG system retrieves evidence from both knowledge gra…

cs.CL2024★ 2 cited

Paths-over-Graph: Knowledge Graph Empowered Large Language Model Reasoning

Xingyu Tan, Xiaoyang Wang, Qing Liu +3

Large Language Models (LLMs) have achieved impressive results in various tasks but struggle with hallucination problems and lack of relevant knowledge, especially in deep complex r…