AI RESEARCH
A Geometric Taxonomy of Hallucinations in LLMs
arXiv CS.CL
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ArXi:2602.13224v2 Announce Type: replace-cross The term "hallucination" converge different failure modes with specific geometric signatures in embedding space. We propose a taxonomy identifying three types: unfaithfulness (Type I: ignoring provided context), confabulation (Type II: inventing semantically foreign content), and factual error (Type III: wrong details within correct conceptual frames). We