一作SIGIR 2026Oral· Information Retrieval (Full)
Beyond Static Best-of-N: Bayesian List-wise Alignment for LLM-based Recommendation
Ruijun Chen · Chongming Gao · Jiawei Chen · Weiqin Yang · Xiangnan He
摘要
Large Language Models have revolutionized recommender systems (LLM4Rec) by leveraging their generative capabilities to model complex user preferences. However, existing LLM4Rec methods primarily rely on token-level objectives, making it difficult to optimize list-level and non-differentiable metr...