H-GRPO: Permutation-Invariant Reinforcement Learning for Improving Spatial Grounded Reasoning

arXiv:2606.29915 · cs.CV · Submitted 2026-06-29 · Read on arXiv

cs.CV

Submitted: 2026-06-29

Updated: 2026-10-26

Terminology

• Grounding — 2× in this paper · explained in 3 episodes
• Benchmark — 1× in this paper · explained in 2 episodes
• Evidence Grounding — 1× in this paper · explained in 3 episodes
• GRPO — 1× in this paper · explained in 6 episodes
• Hallucination — 1× in this paper · explained in 4 episodes
• Interpretability — 1× in this paper · explained in 15 episodes
• Reinforcement Learning — 1× in this paper · explained in 4 episodes
• Structured Reasoning — 1× in this paper · explained in 3 episodes
• Vision-Language Models (VLMs) — 1× in this paper · explained in 7 episodes
• Vision-language models — 1× in this paper · explained in 2 episodes

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