LLM Retrieval for Stable and Predictable Ad Recommendations. - Vinodh Kumar Sunkara; Satheeshkumar Karuppusamy; Hangjun Xu; Sai Deepika Regani; Kshitij Gupta; Gaby Nahum; Sneha Iyer; Jean-Baptiste Fiot; Yinglong Guo; Xiaowen Guo; Atul Jangra; Yucheng Liu; et al. (CoRR, 2026)