Rethinking LLM-as-a-Judge: Representation-as-a-Judge with Small Language Models via Semantic Capacity Asymmetry - Li, Zhuochun; Zhang, Yong; Li, Ming; Ji, Yuelyu; Zeng, Yiming; Cheng, ning; Zhu, Yun; Wang, Yanmeng; Wang, Shaojun; Xiao, Jing; He, Daqing (International Conference on Learning Representations, 2026)