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The Cost of Compression: A Rate-Distortion Limit on Factual Hallucination

This story is from 2026-09-14. It is preserved in the archive; the latest stories are on the live feed.

arXiv:2609.12111v1 Announce Type: new Abstract: Factual hallucination in closed-book question answering is often treated as a coverage problem: a model fails because the relevant fact is absent from its internal memory. This view misses a second source of error. Even when a fact has been observed,…

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  1. 2026-09-14 04:00 · arXiv cs.CL
    The Cost of Compression: A Rate-Distortion Limit on Factual Hallucination

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