Research paper

TH-RAG : Topic-Based Hierarchical Knowledge Graphs for Robust Multi-hop Reasoning in Graph-based RAG Systems

Published by Association for Computational LinguisticsJul 2026PDF

Learn how grouping knowledge graph material by topic can support questions requiring several linked facts.

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JungHyoun Kim, Soohyeong Kim, Seok Jun Hwang, Jeonghyeon Park, Yong Suk Choi. TH-RAG : Topic-Based Hierarchical Knowledge Graphs for Robust Multi-hop Reasoning in Graph-based RAG Systems. Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). © 2026 Association for Computational Linguistics. CC BY 4.0. 10.18653/v1/2026.acl-long.1740. Original PDF, unmodified.

CC BY 4.0

TH-RAG : Topic-Based Hierarchical Knowledge Graphs for Robust Multi-hop Reasoning in Graph-based RAG Systems

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