Decoupling skills from expert policies improves multi-capability vision-language model training

Authors show that guiding expert supervision with explicit skills reduces gradient conflicts and yields consistent gains across eight benchmarks.

Chinese Tech
Yuqi Xiong · Chunyi Peng · Zhipeng Xu · Qing Yang · Zhenghao Liu · Zulong Chen · +2 more

Northeastern University · Alibaba Group

Research Digest··2 min read
The authors propose SCOPED, a framework that trains separate capability-specific experts via reinforcement learning, extracts explicit skills from their reasoning trajectories, and uses those skills to condition the experts during on-policy distillation into a unified student vision-language model.

The authors trained independent vision-language experts via reinforcement learning on separate datasets for capabilities such as fine-grained perception, visual grounding, and complex reasoning.

Why this paper

From Alibaba Group and Northeastern University · Part of Reasoning Distillation Alignment, now 31 papers

In one line

SCOPED trains capability-specific experts and distills explicit skills into a unified VLM, outperforming mixed-capability RL.

What we could check

  • ·No code link found
  • ·No weights link found
  • ·No dataset link found
  • ·No compute details found
  • ·No stated limitations found
  • ·No benchmark numbers found

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Research Digest

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