الباحثون

Xi Yang

المنشورات 2

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MoFlow: Multi-Objective Agentic Workflow Generation

Yining Lu, Aurelie Lozano, Xi Yang وآخرون · 2026

We study the generation of agentic workflows that jointly optimize multiple objectives, such as accuracy, cost, latency, robustness, and consistency. Existing methods for workflow generation typically optimize accuracy alone or a weighted sum of objectives, so each trained generator commits to one fixed trade-off and m …

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ImpossibleRubrics: Stress-Testing Generated Rubrics as Reward Signals

Bowen Qin, Yi Xie, Yesheng Liu وآخرون · 2026

Language model-generated rubrics are increasingly used as reward signals for rubric-based reinforcement learning, LLM-as-a-judge evaluation, and automated grading. Such rubrics are reliable only if they reward honest answers over adversarial answers optimized to exploit them. Yet their robustness to such optimization r …

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