Author

Yitong Duan

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#artificial intelligence Preprint Aug 2026

CogEvol: Towards Efficient and Reliable Learning Environment Generation

CogEvol, a family of models trained specifically for Learning Environment Generation: turning a course brief into a finished learning artifact (structured-JSON slides or self-contained interactive HTML pages) in a single pass, lowering the unit cost of AI-native education at scale.

Shangqing Tu, Daniel Zhang-Li, Yu-Cheng Wang et al. · 0 citations

Preprint Aug 2026

AgentRewind: Recoverable Execution for Long-Horizon LLM Agents

AgentRewind is presented, a runtime recovery framework that records aligned checkpoints of the agent context and controlled environment, allowing agents to return to an earlier state and resume execution with information from previous attempts, improving task success rate and average checklist progress over the compare...

Yu Zhuang, Kefei Chen, Yitong Duan et al. · 7 citations