Zhu, Yutao, Zhaoheng Huang, Zhicheng Dou, and Ji-Rong Wen. “One Token Can Help! Learning Scalable and Pluggable Virtual Tokens for Retrieval-Augmented Large Language Models”. Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 24 (April 11, 2025): 26166–26174. Accessed May 13, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/34813.