{"type": "article", "title": "An expressivity analysis of hierarchical modelling in deep transformers via bounded-depth grammars", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/an-expressivity-analysis-of-hierarchical-modelling-in-deep-transformers-via", "original_source": "https://arxiv.org/abs/2606.17522", "published": "2026-06-17T04:00:00+00:00", "accessed": "2026-06-17", "id": "an-expressivity-analysis-of-hierarchical-modelling-in-deep-transformers-via"}