作者位次 #5/7SIGIR 2026Oral· Information Retrieval (Full)
GNN-based Item Indexing for LLM-enhanced Recommendation
Mao Senlin · Ji Zhang · Peng Zhang · Ze Wang · Xiaoyao Zheng · Jia Wang (Xi' · an Jiaotong-Liverpool University)
摘要
Large language models (LLMs) have transformed recommender systems through strong semantic understanding and generalization. However, the design of item identifiers remains a critical bottleneck that directly affects recommendation quality. Traditional metadata-based identifiers introduce length v...