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Jiaxuan You

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#machine learning Preprint Oct 2026

CURIO: Curiosity-Driven Test-Time Learning for Open-Ended Discovery

Open-ended discovery requires learning from repeated attempts while continuing to explore directions whose value is not yet apparent. Search with a frozen large language model (LLM) can reuse previous solutions in context, but cannot update the model from its successes and failures on the test problem. Reinforcement le...

Tao Feng, Fangxu Yu, Zi-Jie Lei et al. · 0 citations

GMTRouter: Personalized LLM Router over Multi-turn User Interactions

This work proposes GMTRouter, which represents multi-turn user-LLM interactions as a heterogeneous graph with five node types: user, LLM, query, response and turn, thereby maximally preserving the rich relational structure of the interaction.

Encheng Xie, Yihang Sun, Tao Feng et al. · 6 citations
Preprint Aug 2026

LLMRouter: Unified Infrastructure for Developing, Evaluating, and Deploying LLM Routers

This work presents a unified formulation of LLM routing as a sequential decision process characterized by five components: context encoders, model encoders, scoring functions, decision rules, and learning signals, covering single-turn, multi-turn, and personalized routing.

Tao Feng, Fangxu Yu, Haozhen Zhang et al. · 1 citation

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