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Sponsored Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt

Author

Wanyu Wang

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Preprint Aug 2026

GCPO: Diagnosing and Constraining Subspace Geometry in Rollout RL for LLMs

On-policy rollout methods such as GRPO are central to post-training of large language models, yet they frequently suffer from training instabilities, cross-task capability degradation, and response-length inflation. Although prior work has characterized the subspace geometry of aggregate updates, the stepwise variation...

Kai Yang, Jingwei Xu, Wan-Yu Wang et al. · 0 citations
Book Open access Jul 2026

ProEchoMem: Enhancing Long Video Understanding via Multi-Trace Probe-Echo Memory

Inspired by Multiple-Trace Theory in cognitive psychology, this work revisit long video understanding from a probe-echo perspective, in which human episodic memories are activated and integrated in parallel, and proposes ProEchoMem, a cognitive-inspired framework that simulates the probe-echo mechanism.

Derong Xu, Yanxin Chen, Wanyu Wang et al. · 0 citations

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