SA-RAG applies spreading activation to knowledge graphs
Published on December 20, 2025, this item describes a retrieval approach for knowledge-graph RAG, intended to find connected evidence for multi-hop questions.
The December 20, 2025 item introduces SA-RAG, which applies spreading activation to a knowledge-graph-based RAG system. Activation starts from entities associated with a query and propagates along weighted graph connections; the method helps retrieve documents linked to highly activated entities.
The approach is presented as an alternative to LLM-guided iterative retrieval for finding connected evidence in multi-hop questions. To check the account, look up the publication by the title “SA-RAG uses spreading activation for retrieval with knowledge graphs” and its date; verify the method and findings in the original before drawing conclusions beyond what this item reports.