RecHarness:基于Bandit路由的自主进化推荐系统智能体框架
原标题:RecHarness: A Bandit-Routed Agentic Harness for Self-Evolving Recommender Systems
AI 摘要
RecHarness 提出了一种基于 Bandit 路由的智能体框架,用于自动化推荐模型优化。该框架将优化过程分为两步:Bandit 路由器根据历史验证反馈选择修改方向,LLM 在选定方向内生成具体优化假设和可执行代码编辑。在多个推荐任务和数据集上,RecHarness 比纯 LLM 推理搜索更稳定且更节省试验预算,在大型短视频广告平台的 7 天在线 A/B 测试中,ADVV 提升 2.084%,Revenue 提升 0.534%,Exposure 提升 0.559%。
正文节选
RecHarness: A Bandit-Routed Agentic Harness for Self-Evolving Recommender Systems Abstract Optimizing modern recommender models still depends heavily on engineers manually iterating over architectural, objective, and training-strategy changes. While LLM-based agents can automate this trial-and-error process, allowing the LLM to both select modification directions and generate concrete hypotheses often leads to unstable search under limited experiment budgets. Inspired by the above challenge, we