Preprint
Aug 2026
Unpaired Modality-Agnostic Generative Recommendation
UnpairGR is proposed, which learns a unified semantic-ID space from paired, image-only, and text-only observations, which confines modality-specific processing to lightweight input projections while sharing the subsequent Transformer and residual codebooks across all observation conditions.
Wei-Hao Shen, Wei Chen, Fu-Wei Zhang et al.
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