作者位次 #3/7SIGIR 2026Oral· Information Retrieval (Full)
Differentiable Semantic ID for Generative Recommendation
Junchen Fu · Xuri Ge · Alexandros Karatzoglou · Ioannis Arapakis · Suzan Verberne · Joemon M. Jose · Zhaochun Ren
摘要
Generative recommendation provides a novel paradigm in which each item is represented by a discrete semantic ID (SID) learned from rich content. Most methods treat SIDs as predefined and train recommenders under static indexing. In practice, SIDs are optimized only for content reconstruction rath...