KG-Guard: Graph-Based Hallucination Detection for Knowledge Base Question Answering
KG-Guard detects KBQA hallucinations via graph-based answer-node classification, achieving 82, 87 F1 with 305x fewer parameters and improving downstream accuracy 13, 15 points via iterative refinement.
Sydney Poster Session 3, Wed, Dec 9, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026
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