Lina Yao | Xunyi's Academic Websitehttps://jiangxunyi.github.io/authors/lina-yao/Lina YaoHugo Blox Builder (https://hugoblox.com)en-usTue, 01 Sep 2026 00:00:00 +0000https://jiangxunyi.github.io/media/icon_hu12864870738162112581.pngLina Yaohttps://jiangxunyi.github.io/authors/lina-yao/The Geometry of Agent Skills: Non-Commutative Composition in Representation Spacehttps://jiangxunyi.github.io/publication/agentskillgeometry/Tue, 01 Sep 2026 00:00:00 +0000https://jiangxunyi.github.io/publication/agentskillgeometry/<p>A study of the geometry of agent skills and how their composition depends on order in representation space.</p>Can We Break LLMs Out of Self-Loops? Fine-Grained Reasoning Control with Activation Steeringhttps://jiangxunyi.github.io/publication/selfloops/Mon, 20 Jul 2026 00:00:00 +0000https://jiangxunyi.github.io/publication/selfloops/<p>SOPHIA detects when a model repeats unproductive reasoning states and intervenes through hidden-state steering. The method uses transitions between reasoning states to guide generation, improving answer quality and token efficiency.</p>