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20242026
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cs.IR2026

Semantic IDs for Recommender Systems at Snapchat: Use Cases, Technical Challenges, and Design Choices

Clark Mingxuan Ju, Tong Zhao, Leonardo Neves +15

Effective item identifiers (IDs) are an important component for recommender systems (RecSys) in practice, and are commonly adopted in many use cases such as retrieval and ranking.…

cs.IR2025

Generative Recommendation with Semantic IDs: A Practitioner's Handbook

Clark Mingxuan Ju, Liam Collins, Leonardo Neves +4

Generative recommendation (GR) has gained increasing attention for its promising performance compared to traditional models. A key factor contributing to the success of GR is the s…

cs.IR2025

Revisiting Self-attention for Cross-domain Sequential Recommendation

Clark Mingxuan Ju, Leonardo Neves, Bhuvesh Kumar +7

Sequential recommendation is a popular paradigm in modern recommender systems. In particular, one challenging problem in this space is cross-domain sequential recommendation (CDSR)…

cs.IR2025

Learning Universal User Representations Leveraging Cross-domain User Intent at Snapchat

Clark Mingxuan Ju, Leonardo Neves, Bhuvesh Kumar +11

The development of powerful user representations is a key factor in the success of recommender systems (RecSys). Online platforms employ a range of RecSys techniques to personalize…

cs.IR2024

GraphHash: Graph Clustering Enables Parameter Efficiency in Recommender Systems

Xinyi Wu, Donald Loveland, Runjin Chen +7

Deep recommender systems rely heavily on large embedding tables to handle high-cardinality categorical features such as user/item identifiers, and face significant memory constrain…