RefineBench: Evaluating Refinement Capability of Language Models via Checklists - Lee, Young-Jun; Kim, Seungone; Lee, Byung-Kwan; Moon, Minkyeong; Hwang, Yechan; Kim, Jong Myoung; Neubig, Graham; Welleck, Sean; Choi, Ho-Jin (International Conference on Learning Representations, 2026)