Author

Jingyu Wang

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Preprint Aug 2026

Auditing Return Conditioning as a Control Knob: An Offline Diagnostic for Decision Transformer Recommendation

Offline return-to-go (RTG) sweeps can test whether a recommender conditioned on return is controllable, but the intervention is rarely audited. Rewriting every historical RTG token creates an increasingly synthetic context, while rewriting only the current token is more local. We test this distinction in an offline set...

Jingyu Wang · 0 citations

Open access Aug 2026

Large Language Model Agents for Recommender Systems: Bridging Behavior and Semantics with Long-Short Term Interest Modeling

This study presents an exploratory LLM-agent-based hybrid recommender system framework, building upon a multi-armed bandit approach, which enables semantic understanding of item content and integrates both short-term and long-term user interaction behaviors for recommendation.

Yiming Cheng, Yi-Tong Ma, Jingyu Wang et al. · Electronics · 1 citation