activity
20112026
most citedZ-tensors and complementarity problems

35 citations · 158 across the 37 of their papers we have counts for

collaborators

38 papers

cs.LG2026

Right Answers, Costly Models: The Efficiency Gap in LLM-based Optimization Modeling

Zhong Li, Xin Huang, Jinhui Wan +6

Optimization modeling formulates real-world decision problems as mathematical programs that solvers can use to find optimal decisions. Large language models (LLMs) can automate thi…

cs.LG2026

Compositional Behavioral Semantics for State Abstraction in Reinforcement Learning

Yivan Zhang, Ziyan Luo, Manuel Baltieri

State abstraction plays a key role in scaling reinforcement learning to complex but structured systems. In studying such systems, a wide range of behavioral structures have been st…

cs.CV2025

Low Rank Support Quaternion Matrix Machine

Wang Chen, Ziyan Luo, Shuangyue Wang

Input features are conventionally represented as vectors, matrices, or third order tensors in the real field, for color image classification. Inspired by the success of quaternion…

math.OC2025

Sharp-Peak Functions for Exactly Penalizing Binary Integer Programming

Shenglong Zhou, Shuai Li, Hui Zhang +1

Unconstrained binary integer programming (UBIP) is a challenging optimization problem due to the presence of binary variables. To address the challenge, we introduce a novel class…

cs.AI2025

Discovering Temporal Structure: An Overview of Hierarchical Reinforcement Learning

Martin Klissarov, Akhil Bagaria, Ziyan Luo +3

Developing agents capable of exploring, planning and learning in complex open-ended environments is a grand challenge in artificial intelligence (AI). Hierarchical reinforcement le…

cs.LG2025

Understanding Behavioral Metric Learning: A Large-Scale Study on Distracting Reinforcement Learning Environments

Ziyan Luo, Tianwei Ni, Pierre-Luc Bacon +2

A key approach to state abstraction is approximating behavioral metrics (notably, bisimulation metrics) in the observation space and embedding these learned distances in the repres…