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Author

Zijian Zhao

The Hong Kong University of Science and Technology

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Preprint Aug 2026

Low-Interaction-Rank Learning: Unifying Multiplicative Dual-Encoder Heads

A multiplicative dual-encoder network computes a real-valued output for a pair of inputs as the inner product of their separate encodings. This architecture has been developed independently in operator learning, bipartite matching, contrastive vision-language models, retrieval, and other areas, yet no unified theory gu...

Zijian Zhao, Sen Li · 0 citations
#machine learning Preprint Sep 2026

RideSkill: A Hierarchical Algorithm for Generalized Ride Sharing with LLM-Driven Automatic Evolution

RideSkill is proposed, a hierarchical method for ride-sharing that leverages LLM-assisted automatic algorithmic design, and consists of a combiner that assigns appropriate skills to each vehicle from a learned skill repository, enabling adaptive dispatch under varying scenarios and objectives.

Zijian Zhao, Zi-Jian Zhao · 0 citations
Preprint Aug 2026

Is Per-Agent Policy Composition Safe? Rethinking Successor-Feature Transfer in Cooperative Multi-Agent Reinforcement Learning

MA-USFA, a hierarchical method with two layers: a lower layer of universal successor feature approximators that predicts each agent's successor features while conditioned on its teammates' objectives, and an upper composer that selects, across agents, which library entry each agent should follow and supplies the cross-...

Zijian Zhao, Sen Li · 0 citations

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