arXiv AI By Yongxue Shan, Meihan Wu, Cundi Fang, Jie Peng, Xiaodong Wang

Ontology-Guided Evidence Path Inference for Multi-hop Knowledge Graph Question Answering

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arXiv:2606. 28076v1 Announce Type: new Abstract: Knowledge graph question answering (KGQA) aims to answer natural-language questions by reasoning over structured facts.

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arXiv AI
Sep 10

Better Later Than Sooner: Neuro-Symbolic Knowledge Graph Construction via Ontology-grounded Post-extraction Correction

The paper introduces a neuro‑symbolic framework for constructing knowledge graphs (KGs) that are grounded in an ontology. It combines open‑domain extraction, embedding‑based canonicalization of types and predicates, and a post‑extraction LLM‑based correction step to fix ontology violations, thereby reducing token usage and improving KG consistency. The resulting KGs support symbolic querying, as evidenced by the prevalence of SPARQL graph patterns in the extracted data.

By Lorenzo Loconte, Timothy Hospedales, Cristina Cornelio