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New theory models LLM in-context learning as geometric belief space trajectories

Researchers have proposed a new framework for understanding how Large Language Models (LLMs) learn within a given context. Their work suggests that LLMs update their behavior by performing Bayesian inference over a low-dimensional geometric space, termed a conceptual belief space. By analyzing LLMs' performance on story understanding tasks, the study found that these belief updates follow predictable trajectories on structured manifolds, which are reflected in both the models' external behavior and internal representations. Furthermore, interventions on these internal representations could causally influence the belief trajectories, supporting the geometric account of LLM belief dynamics. AI

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IMPACT Proposes a geometric framework for understanding LLM in-context learning, potentially enabling more predictable and steerable model behavior.

RANK_REASON The cluster contains an academic paper detailing a new theoretical framework for understanding LLM behavior. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

COVERAGE [1]

  1. arXiv cs.AI TIER_1 · Ekdeep Singh Lubana ·

    Stories in Space: In-Context Learning Trajectories in Conceptual Belief Space

    Large Language Models (LLMs) update their behavior in context, which can be viewed as a form of Bayesian inference. However, the structure of the latent hypothesis space over which this inference operates remains unclear. In this work, we propose that LLMs assign beliefs over a l…