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RSF-GLLM framework decouples differentiable graph reasoning from answer generation for multi-hop QA over knowledge graphs

Researchers propose RSF-GLLM, a framework that decouples differentiable graph reasoning from answer generation to address the non-differentiability issue in traditional retrieve-then-read pipelines for multi-hop question answering over knowledge graphs. The Recurrent Soft-Flow module uses a GRU-guided query updater and dynamic gating to propagate relevance scores across semantically dissimilar bridge nodes.

0 engagement·1 source·Tue, Jul 7, 2026, 05:32 PM
The paper introduces RSF-GLLM, which separates differentiable graph reasoning from answer generation. The Recurrent Soft-Flow (RSF) module employs a GRU-guided query updater to propagate continuous relevance scores, using a dynamic gating mechanism to traverse semantically dissimilar bridge nodes via structural information. This addresses the critical challenge of non-differentiability in traditional retrieve-then-read pipelines, where the retriever cannot learn to bridge the semantic gap when intermediate nodes lack lexical overlap with the query.

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RSF-GLLM(model)Recurrent Soft-Flow(concept)RSF-GLLM(tool)GRU-guided query updater(concept)multi-hop question answering(concept)knowledge graphs(concept)multi-hop question answering over knowledge graphs(benchmark)

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