Xiangyi Chen
1 indexed paper
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126
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Info Retrieval×1AI×1
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2026
LLMs Need Encoders for Semantic IDs Too
The paper proposes PrefixMem, a dedicated encoder for Semantic IDs (SIDs), demonstrating that structured, prefix-conditioned representations significantly improve the accuracy and recall of generative recommendation systems.
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Papers
cs.IRcs.AIRecentMay 29, 2026
LLMs Need Encoders for Semantic IDs Too
Xiangyi Chen, Zelun Wang, Xinyi Li, Yi-Ping Hsu +2 more
The paper proposes PrefixMem, a dedicated encoder for Semantic IDs (SIDs), demonstrating that structured, prefix-conditioned representations significantly improve the accuracy and recall of generative…
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