VISREAS: Complex Visual Reasoning with Unanswerable Questions Syeda Nahida Akter author Sangwu Lee author Yingshan Chang author Yonatan Bisk author Eric Nyberg author 2024-08 text Findings of the Association for Computational Linguistics: ACL 2024 Lun-Wei Ku editor Andre Martins editor Vivek Srikumar editor Association for Computational Linguistics Bangkok, Thailand conference publication akter-etal-2024-visreas 10.18653/v1/2024.findings-acl.402 https://aclanthology.org/2024.findings-acl.402/ 2024-08 6735 6752