{"type": "article", "title": "PRO-Step: Step-level Process Reward Optimization for Retrieval-Augmented Generation", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/pro-step-step-level-process-reward-optimization-for-retrieval-augmented", "original_source": "https://arxiv.org/abs/2609.01658", "published": "2026-09-03T04:00:00+00:00", "accessed": "2026-09-03", "id": "pro-step-step-level-process-reward-optimization-for-retrieval-augmented"}