Faculty Profiles - ZHANG Zihan | The Hong Kong University of Science and Technology

Zihan ZHANG
張子函

PhD in Control Science and Engineering
Tsinghua University, 2022

Assistant Professor
Department of Computer Science and Engineering

(852) 2358 8342
zihanz@ust.hk
Room 3512
Personal Web

Google Scholar

un0eGzEAAAAJ

ORCID

0009-0001-2061-6801

Scopus ID

57192669483

Research Interest Publications Teaching Assignment

Research Interest

Machine learning
Algorithms
Design and analysis of algorithms

Publications

All Years 3 2026 1 2025 2 2024 0 2023 0 2022 0 2021 0

2026 1

Frozen Policy Iteration: Computationally Efficient RL under Linear $Q^{\pi}$ Realizability for Deterministic Dynamics

Paper presented at The Fourteenth International Conference on Learning Representations, Rio de Janeiro, Brazil
Ke, Yijing; ZHANG, Zihan; Wang, Ruosong
Conference paper

2025 2

Deployment Efficient Reward-Free Exploration with Linear Function Approximation

Paper presented at 39th Annual Conference on Neural Information Processing Systems, NeurIPS 2025, San Diego, United States
ZHANG, Zihan; Chen, Yuxin; Lee, Jason D.; Du, Simon S.; Yang, Lin F.; Wang, Ruosong
Conference paper

Sharp Gap-Dependent Variance-Aware Regret Bounds for Tabular MDPs

Paper presented at 39th Annual Conference on Neural Information Processing Systems, NeurIPS 2025, San Diego, United States
Chen, Shulun; Zhou, Runlong; ZHANG, Zihan; Fazel, Maryam; Du, Simon S.
Conference paper

Conference paper 1

Frozen Policy Iteration: Computationally Efficient RL under Linear $Q^{\pi}$ Realizability for Deterministic Dynamics

Paper presented at The Fourteenth International Conference on Learning Representations, Rio de Janeiro, Brazil
Ke, Yijing; ZHANG, Zihan; Wang, Ruosong

Conference paper 2

Deployment Efficient Reward-Free Exploration with Linear Function Approximation

Paper presented at 39th Annual Conference on Neural Information Processing Systems, NeurIPS 2025, San Diego, United States
ZHANG, Zihan; Chen, Yuxin; Lee, Jason D.; Du, Simon S.; Yang, Lin F.; Wang, Ruosong

Sharp Gap-Dependent Variance-Aware Regret Bounds for Tabular MDPs

Paper presented at 39th Annual Conference on Neural Information Processing Systems, NeurIPS 2025, San Diego, United States
Chen, Shulun; Zhou, Runlong; ZHANG, Zihan; Fazel, Maryam; Du, Simon S.

No Publications

Teaching Assignment

2025-26 Spring 1 2025-26 Winter 0 2025-26 Fall 0 2024-25 Summer 0 2024-25 Spring 0 2024-25 Winter 0

COMP4211

Machine Learning

No Teaching Assignments