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Yongjia Lei

6 papers hereh-index 5353 citations9 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author2
  • middle author4

Across the 6 of 6 papers where every author was matched, so the position is known.

fields
  • cs.IR3
  • cs.CL2
  • cs.LG1

identity via Semantic Scholar / OpenAlex

most citedRetrieval-Augmented Generation with Graphs (GraphRAG)

27 citations · 27 across the 4 of their papers we have counts for

collaborators
Showing cs.IRShow all

3 papers · 1 filter

cs.IR2026

RL-Index: Reinforcement Learning for Retrieval Index Reasoning

Yongjia Lei, Nedim Lipka, Zhisheng Qi +7

Retrieving external knowledge is crucial for real-world tasks but remains difficult when queries and relevant knowledge are linked by implicit reasoning (e.g., shared theorems or c…

cs.IR2025

RAG vs. GraphRAG: A Systematic Evaluation and Key Insights

Haoyu Han, Li Ma, Yu Wang +9

Retrieval-Augmented Generation (RAG) improves large language models (LLMs) by retrieving relevant information from external sources and has been widely adopted for text-based tasks…

cs.IR2025★ 27 cited

Retrieval-Augmented Generation with Graphs (GraphRAG)

Haoyu Han, Yu Wang, Harry Shomer +15

Retrieval-augmented generation (RAG) is a powerful technique that enhances downstream task execution by retrieving additional information, such as knowledge, skills, and tools from…

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