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Autori principali: Jang, Chaemin, Park, Woojin, Yun, Hyeok, Lee, Dongman, Kim, Jihee
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2604.27540
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author Jang, Chaemin
Park, Woojin
Yun, Hyeok
Lee, Dongman
Kim, Jihee
author_facet Jang, Chaemin
Park, Woojin
Yun, Hyeok
Lee, Dongman
Kim, Jihee
contents Scientific reasoning rarely stops at what is directly observable; it often requires uncovering hidden structure from data. From estimating reaction constants in chemistry to inferring demand elasticities in economics, this latent structure recovery is what distinguishes scientific reasoning from curve fitting. Large language models (LLMs) can often recall and apply relevant scientific formulas, but we show that this ability is surprisingly easy to suppress. We show that adding in-context examples makes models rely less on pretrained domain knowledge, even when those examples are generated by the very same formula. Rather than reinforcing knowledge-driven derivation, examples shift computation toward empirical pattern fitting. We document this knowledge displacement on 60 latent structure recovery tasks across five scientific domains, 6,000 trials, and four models. This displacement is consistent across domains, but its accuracy consequences depend on how the displaced strategy compares to the one that replaces it: the same shift can lower accuracy, leave it unchanged, or appear to improve it. In all cases, however, the model shifts away from knowledge-driven reasoning. For practitioners deploying LLMs on scientific tasks, the message is cautionary: in-context examples may displace, rather than reinforce, the knowledge they are intended to support.
format Preprint
id arxiv_https___arxiv_org_abs_2604_27540
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle In-Context Examples Suppress Scientific Knowledge Recall in LLMs
Jang, Chaemin
Park, Woojin
Yun, Hyeok
Lee, Dongman
Kim, Jihee
Artificial Intelligence
Scientific reasoning rarely stops at what is directly observable; it often requires uncovering hidden structure from data. From estimating reaction constants in chemistry to inferring demand elasticities in economics, this latent structure recovery is what distinguishes scientific reasoning from curve fitting. Large language models (LLMs) can often recall and apply relevant scientific formulas, but we show that this ability is surprisingly easy to suppress. We show that adding in-context examples makes models rely less on pretrained domain knowledge, even when those examples are generated by the very same formula. Rather than reinforcing knowledge-driven derivation, examples shift computation toward empirical pattern fitting. We document this knowledge displacement on 60 latent structure recovery tasks across five scientific domains, 6,000 trials, and four models. This displacement is consistent across domains, but its accuracy consequences depend on how the displaced strategy compares to the one that replaces it: the same shift can lower accuracy, leave it unchanged, or appear to improve it. In all cases, however, the model shifts away from knowledge-driven reasoning. For practitioners deploying LLMs on scientific tasks, the message is cautionary: in-context examples may displace, rather than reinforce, the knowledge they are intended to support.
title In-Context Examples Suppress Scientific Knowledge Recall in LLMs
topic Artificial Intelligence
url https://arxiv.org/abs/2604.27540