الباحثون

Zijian Jin

المنشورات 4

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Safety Must Survive Self-Improvement: Why Failures Persist and How Agents Recover

Yunbei Zhang, Janet Wang, Saiyue Lyu وآخرون · 2026

Recursive self-improvement (RSI) allows agents to carry useful changes across generations. Maintaining safety across these generations involves both preventing unsafe behavior from persisting and enabling recovery when failures occur. We study these challenges through a controlled testbed of stateful authorization task …

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DeepJEPA: Scaling World Models from Within

Zijian Jin, Yunbei Zhang, Yuanzhe Liu وآخرون · 2026

World-model planners typically scale outward by rolling farther, sampling more trajectories, or optimizing longer, while assigning the same computation to every imagined transition. We show that making every transition uniformly deeper wastes computation and can degrade planning because useful refinement is concentrate …

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LIBERO-MAX: Do Robot Policies Adapt When the World Changes?

Yunbei Zhang, Zijian Jin, Yuanzhe Liu وآخرون · 2026

Robots must often continue a task after a target moves, the viewpoint shifts, or an obstacle appears, even though their earlier observations and committed actions reflect the previous scene. Many simulation robustness benchmarks fix external conditions at reset, leaving this temporal challenge underexamined. We introdu …

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Simple Agentic Memory for Generalist Robot Policies

Yuyou Zhang, Yunbei Zhang, Miao Li وآخرون · 2026

Visual-memory systems commonly retain or compress past observations. Robot control additionally requires interaction-derived state that no individual frame may explicitly represent, such as persistent identity relations, accumulated progress, or ordered procedures. We introduce Simple Agentic Robot Memory (SimpleARM), …

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