ACM Comput. Surv., Vol. 1, No. 1, Article . Publication date: February 2022.

Survey of Hallucination in Natural Language Generation

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introduced to the system for knowledge selection. The authors study several key problems, such
as whether retrieval helps reduce hallucinations and how the generation should be augmented
with the retrieved knowledge. The experimental results show that retrieval helps substantially in
improving performance on KGD tasks and in reducing the hallucination in conversations without
sacrificing conversational ability.
SurveyofHallucinationinNatural Language Generation