CaPE: Contrastive Parameter Ensembling for Reducing Hallucination in Abstractive Summarization Prafulla Kumar Choubey author Alex Fabbri author Jesse Vig author Chien-Sheng Wu author Wenhao Liu author Nazneen Rajani author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication choubey-etal-2023-cape 10.18653/v1/2023.findings-acl.685 https://aclanthology.org/2023.findings-acl.685/ 2023-07 10755 10773