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Xiang-Yi Wang

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#artificial intelligence Preprint Oct 2026

Bridging Exploration and Persona: Information-Directed Dueling for Test-Time Agent Personalization

ID-TAP is presented, a scalable, IDS-inspired neural dueling-bandit framework for large discrete persona spaces that combines a query-conditioned neural utility model with a lightweight Bradley-Terry explorer, and transfers comparison evidence across related queries through similarity-weighted warm starts.

Jie Mao, Ping-Chen Lu, Xiang-Yi Wang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

COBRA-Skills: Contextual Bandit-Guided Evolution for Agent Skill Optimization

COBRA-Skills is introduced, an efficient framework that formulates skill optimization as budgeted sequential optimization over a dynamically evolving candidate space and remains robust to changes in the agent harness and performs effectively when the target model itself is used for skill generation and refinement.

Ping-Chen Lu, Xiang-Yi Wang, Xiang Li et al. · 2 citations

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