Author

Haihan Shi

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Open access Aug 2026

SETRec++: Scaling Order-agnostic Identifier for Large Language Model-based Generative Recommendation

Leveraging Large Language Models (LLMs) for generative recommendation has attracted significant research interest, where item tokenization is a critical step. It involves assigning item identifiers for LLMs to encode user history and generate the next item. Existing approaches leverage either token-sequence identifiers...

Xin-Yu Lin, Chuan-Bo Zhang, Yu-Fan Liu et al. · ACM Transactions on Recommen... · 0 citations

Preprint Jul 2026

DecoEvo: Score-Decoupled Co-Evolution of Solver and Rubric-Generator Skills in Text Space

Text-space optimization adapts large language models (LLMs) by editing external natural-language artifacts rather than model weights, so the optimized artifacts remain inspectable and the model can be treated as a black box. However, most existing text-space methods keep evaluation fixed. On open-ended tasks, this can...

Jiangwang Chen, Zixin Song, Junlin Liu et al. · 2 citations