Author

Chun-Rui Zhang

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Preprint Oct 2026

SPAR: Stepwise Personalized Autoregressive Recommendation with Prefix-Balanced Semantic IDs

Semantic ID (SID)-based generative recommendation retrieves items through successive token-level decisions, making personalization at each decoding step essential. However, existing methods insufficiently account for prefix-dependent user evidence and imbalanced historical interaction loads among candidate branches. Th...

Chun-Rui Zhang, Gao-Yun Lin, Chang Zhou et al. · 0 citations