[1]SHI Lei,ZHAO Yuqiu,YUAN Ruiping,et al.A survey of generative recommender systems[J].CAAI Transactions on Intelligent Systems,2026,21(1):19-40.[doi:10.11992/tis.202505006]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
21
Number of periods:
2026 1
Page number:
19-40
Column:
综述
Public date:
2026-03-05
- Title:
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A survey of generative recommender systems
- Author(s):
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SHI Lei1; ZHAO Yuqiu1; YUAN Ruiping2; ZHONG Yan3; LIU Yanchao1
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1. State Key Laboratory of Media Integration and Communication, Communication University of China, Beijing 100024, China;
2. School of Computer and Artificial Intelligence, Beijing Wuzi University, Beijing 101149, China;
3. School of Mathematical Sciences, Peking University, Beijing 100871, China
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- Keywords:
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recommender system; generative model; large language model; feature tokenization; representation learning; model architecture; collaborative information; evaluation method
- CLC:
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TP301
- DOI:
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10.11992/tis.202505006
- Abstract:
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With the rapid growth of social media content scale, traditional collaborative filtering recommender systems increasingly exhibit limitations in data sparsity and cold start problems. In recent years, the powerful data feature analysis and content generation capabilities of generative models have brought new development opportunities for recommender systems. This paper systematically reviews the technical frameworks and research progress in generative recommender systems, focusing on five key aspects: feature tokenization methods, core model architectural designs, mainstream evaluation protocols and typical application scenarios. Through comparative analysis and literature review, we demonstrate that generative recommender systems significantly outperform conventional approaches in recommendation accuracy, personality, and scenario adaptability. The study further identifies critical challenges including computational overhead, privacy risks, and standardization of evaluation metrics. Practical solutions and future research directions are proposed to address these challenges, breaking the cognitive bottleneck of generative recommender systems.