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#structured-knowledge News & Analysis

2 articles tagged with #structured-knowledge. AI-curated summaries with sentiment analysis and key takeaways from 50+ sources.

2 articles
AINeutralarXiv – CS AI · 15h ago7/10
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Why LLMs Hallucinate on Structured Knowledge: A Mechanistic Analysis of Reasoning over Linearized Representations

Researchers have identified the mechanistic causes of hallucinations in large language models when reasoning over structured knowledge like graphs and tables. The study reveals that hallucinations stem from systematic failures in attention allocation and semantic grounding in feed-forward layers, rather than random errors, with findings applicable across multiple structured knowledge formats.

AINeutralarXiv – CS AI · 15h ago6/10
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The Compressive Knowledge Graph Hypothesis: Which Graph Facts Matter for Scientific Hypothesis Generation?

Researchers evaluated how knowledge graphs (KGs) influence hypothesis generation in large language models across multiple models, finding that compact subgraphs often perform comparably to full graphs. The study reveals that KG utility is selective and model-dependent, with useful signal often recoverable from structured, compressed subsets rather than complete local graphs.

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