Author

Ning-Hao Liu

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#artificial intelligence Preprint Sep 2026

Train4Merge: A Controlled Single-Teacher Study of RL vs. SFT Teachers for OPD-Based Model Merging

Domain experts trained from a shared checkpoint can transfer their specialized capabilities to a single student through on-policy distillation (OPD). Existing research primarily focuses on improving this merging process, while the algorithms used to train the experts have received limited systematic comparison. We inve...

Jing-Yuan Huang, Zu-Ming Huang, Yu-Cheng Shi et al. · 0 citations

Book Open access Aug 2026

Decomposing Predictive Roles of Semantic and Collaborative Information for Sequential Recommendation

Sequential recommendation benefits from incorporating item textual semantics in addition to interaction-based collaborative signals. However, many existing methods simply concatenate or jointly encode semantic and collaborative features, without explicitly modeling how each source contributes to next-item prediction. A...

Jiangnan Xia, Yu Yang, Xiang Wang et al. · Proceedings of the 32nd ACM... · 0 citations