Halu-NLP at SemEval-2024 Task 6: MetaCheckGPT - A Multi-task Hallucination Detection using LLM uncertainty and meta-models Rahul Mehta author Andrew Hoblitzell author Jack O’keefe author Hyeju Jang author Vasudeva Varma author 2024-06 text Proceedings of the 18th International Workshop on Semantic Evaluation (SemEval-2024) Atul Kr. Ojha editor A Seza Doğruöz editor Harish Tayyar Madabushi editor Giovanni Da San Martino editor Sara Rosenthal editor Aiala Rosá editor Association for Computational Linguistics Mexico City, Mexico conference publication mehta-etal-2024-halu 10.18653/v1/2024.semeval-1.52 https://aclanthology.org/2024.semeval-1.52/ 2024-06 342 348