{"type": "article", "title": "Policy Regret for Embedding Model Routing: Contextual Bandits with Low-Rank Experts", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/policy-regret-for-embedding-model-routing-contextual-bandits-with-low-rank", "original_source": "https://arxiv.org/abs/2606.14929", "published": "2026-06-16T04:00:00+00:00", "accessed": "2026-06-16", "id": "policy-regret-for-embedding-model-routing-contextual-bandits-with-low-rank"}