About me

I'm a Research Scientist at Meta. Previously, I obtained my PhD degree from the Department of Electrical Engineering at University at Buffalo, The State University of New York in 2024, supervised by Prof. Shaofeng Zou. My research topics include hypothesis testing, quickest change detection and reinforcement learning. I received my B.S. degree from Beijing Institute of Technology in 2019. 

Publications

Journal Publications and Preprints

1. Data-Driven Quickest Change Detection in (Hidden) Markov Models

Q. Zhang, Z. Sun, L. Herrera, S. Zou

submitted to IEEE Transactions on Signal Processing, 2023 

2. Quickest Change Detection in Autoregressive Model

Z. Sun, S. Zou

IEEE Transactions on Information Theory, 2024

3. Kernel Robust Hypothesis Testing
   Z. Sun, S. Zou
   IEEE Transactions on Information Theory, 2023

4. Quickest Anomaly Detection in Sensor Networks With Unlabeled Samples
   Z. Sun, S. Zou
   IEEE Transactions on Signal Processing, 2023

5. Quickest Change Detection in Anonymous Heterogeneous Sensor Networks
   Z. Sun, S. Zou, R. Zhang, Q. Li
   IEEE Transactions on Signal Processing, 2022

Conference Publications

2024

• Constrained Reinforcement Learning Under Model Mismatch

Z. Sun, S. He, F. Miao, S. Zou
International Conference on Machine Learning (ICML), 2024

• Neural Stochastic Differential Equations with Change Points: A Generative Adversarial Approach

Z. Sun, Y. El-Laham, S. Vyetrenko 

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2024

2023

• Data-Driven Quickest Change Detection in Hidden Markov Models

Q. Zhang, Z. Sun, L. Herrera, S. Zou

IEEE International Symposium on Information Theory (ISIT), 2023

• Data-Driven Quickest Change Detection in Markov Models

Q. Zhang, Z. Sun, L. Herrera, S. Zou

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023

• Robust Hypothesis Testing with Moment Constrained Uncertainty Sets

A. Magesh*, Z. Sun*, V. Veeravalli, S. Zou (*Equal Contribution)

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023

2022

• Robust Hypothesis Testing With Kernel Uncertainty Sets
  Z. Sun, S. Zou
  IEEE International Symposium on Information Theory (ISIT), 2022

2021

• A Data-Driven Approach to Robust Hypothesis Testing Using Kernel MMD Uncertainty Sets
  Z. Sun, S. Zou
  IEEE International Symposium on Information Theory (ISIT), 2021

• Quickest Dynamic Anomaly Detection in Anonymous Heterogeneous Sensor Networks
  Z. Sun, S. Zou
  IEEE International Symposium on Information Theory (ISIT), 2021

• A Computationally Efficient Algorithm for Quickest Change Detection in Anonymous Heterogeneous Sensor Networks
  Z. Sun, Q. Li, R. Zhang, S. Zou
  IEEE International Symposium on Information Theory (ISIT), 2021

2020

• Quickest Change Detection in Anonymous Heterogeneous Sensor Networks
  Z. Sun, S. Zou, Q. Li
  IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Barcelona, Spain, May. 2020.

Reviewer

• IEEE International Symposium on Information Theory (ISIT)

• IEEE International Conference on Acoustics, Speech, & Signal Processing (ICASSP) 

• IEEE Transactions on Information Theory

• IEEE Transactions on Signal Processing

• IEEE Transactions on Communications

• IEEE Transactions on Signal and Information Processing over Networks