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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

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Jia-He Feng

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#artificial intelligence Preprint Oct 2026

VC-OPD: Visual Counterfactual On-Policy Distillation for Grounded Vision-Language Reasoning

GRPO-style reinforcement learning has advanced vision-language reasoning, but its sequence-level rewards provide limited credit assignment for individual reasoning tokens. On-policy distillation (OPD) addresses this issue by providing dense supervision on student-generated trajectories, yet standard OPD assigns similar...

Jia-He Feng · 0 citations

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