arXiv cs.CLPaper
What Hallucinations Have We Measured? Semantic Illusion, Confabulation, and Expressed Uncertainty
This taxonomy clarifies what we've been lumping together as 'hallucinations' and gives you a diagnostic tool. Confabulations need external knowledge or retraining; semantic illusions need better retrieval or routing. The re-elicitation test is simple and reproducible. For teams debugging reliability issues, this gives you a clearer map of what broke and what to fix.