🧑‍🔬 Lianghao Xia

🏛️ Affiliations

🎓University of Hong KongPok Fu Lam · China2022–2026 · 48 paperscurrent🎓Harbin Institute of TechnologyHarbin · China2026 · 1 papercurrent🎓South China University of TechnologyGuangzhou · China2020–2021 · 11 papers🎓Beijing University of Posts and TelecommunicationsBeijing · China2024–2025 · 2 papers

From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 1 more institution on single bylines are not listed.

🧭 Fields, topics and concepts

Of its works in our library, with the number of works on each.

📅 Works by year

2020s

📄 Papers

The most cited first (OpenAlex and our library).

1. LightRAG: Simple and Fast Retrieval-Augmented Generation (2024 · 316 citations)
   Standard RAG pipelines index text as isolated chunks. When a question involves several linked concepts, the retrieved pieces often produce a disjointed answer. LightRAG (Guo et al., BUPT and University of Hong Kong) addresses this by building a knowledge graph at indexing time. Documents are split into chunks, an LLM…
2. AnyGraph: Graph Foundation Model in the Wild (2026 · 3 citations)
   Graph neural models usually need heavy fine-tuning for each new graph, and they transfer poorly when structure or node features change across domains.

All works

8 works of theirs in our library, the most cited first; 2 with a page here, the others link their original until we summarise them.

1. LightRAG: Simple and Fast Retrieval-Augmented GenerationarXiv:2410.05779Zirui Guo, Lianghao Xia, Yanhua Yu, et al.2024 · 316 citations
2. Knowledge-Enhanced Hierarchical Graph Transformer Network for Multi-Behavior Recommendation ↗Proceedings of the AAAI Conference on Artificial Intelligence · no summary yetLianghao Xia et al.2021 · 240 citations
3. Traffic Flow Forecasting with Spatial-Temporal Graph Diffusion Network ↗Proceedings of the AAAI Conference on Artificial Intelligence · no summary yetXiyue Zhang et al.2021 · 227 citations
4. Knowledge-aware Coupled Graph Neural Network for Social Recommendation ↗Proceedings of the AAAI Conference on Artificial Intelligence · no summary yetChao Huang et al.2021 · 191 citations
5. UrbanGPT: Spatio-Temporal Large Language Models ↗ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) · no summary yetZhonghang Li et al.2024 · 189 citations
6. Knowledge Graph Self-Supervised Rationalization for Recommendation ↗ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) · no summary yetYuhao Yang et al.2023 · 174 citations
7. AI-Researcher: Autonomous Scientific Innovation ↗arXiv:2505.18705 · no summary yetJiabin Tang et al.2025 · 40 citations
8. AnyGraph: Graph Foundation Model in the WildFindings of the Association for Computational LinguisticsLianghao Xia, Chao Huang2026 · 3 citations

🤝 Co-authors here

2 co-authors with a page, the most papers together first.

• Chao Huang ×2
• Yanhua Yu

Venues

Where their works here were published, the most works first, with the editions of those that have a page.

• Proceedings of the AAAI Conference on Artificial Intelligence ×3
• ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) ×2
• Findings of the Association for Computational Linguistics: Findings of the Association for Computational Linguistics 2026

🔗 Cited by

Papers of our library cite their works 188 times (of the 149,439 papers whose bibliographies we read); 30 citing papers with a page here →.

Updated 1 November 2026

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