Papers by Yinfei Xu
STEM: Structure-Tracing Evidence Mining for Knowledge Graphs-Driven Retrieval-Augmented Generation (2026.acl-long)
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| Challenge: | Existing reasoning path retrieval methods lack a global structural perspective. |
| Approach: | They propose a framework that reframes multi-hop reasoning as a schema-guided graph search task. |
| Outcome: | The proposed framework improves accuracy and evidence completeness of multi-hop reasoning graph retrieval. |