LABO: Towards Learning Optimal Label Regularization via Bi-level Optimization Peng Lu author Ahmad Rashid author Ivan Kobyzev author Mehdi Rezagholizadeh author Phillippe Langlais 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 lu-etal-2023-labo 10.18653/v1/2023.findings-acl.356 https://aclanthology.org/2023.findings-acl.356/ 2023-07 5759 5774