Xuchuang Wang

xuchuangwang@umass.edu

I am a postdoc at University of Massachusetts - Amherst, working with Don Towsley and Mohammad Hajiesmaili. I received my Ph.D. in the Department of Computer Science & Engineering at The Chinese University of Hong Kong under the guidance of John C.S. Lui.

Research Highlights

Multi-agent sequential decision-making:
- communication-efficient algorithms (SIGMETRICS’25, ICLR’23, AISTATS’23),
- heterogenous cooperation algorithms (AAAI’25a, UAI’23).
Quantum network performance evaluation:
- quantum network routing optimization (INFOCOM’25, INFOCOM’24),
- quantum best arm identification (AAAI’25b).
Online learning theory:
- bandit algorithms robust to adversarial attack (ICLR’25, L4DC’25),
- multi-fidelity best arm identification (NeurIPS’23),
- bandit algorithms with unknown-capacity shareable arms (ICML’22, IJCAI’22).

selected publications

ICLR

Stochastic Bandits Robust to Adversarial Attacks

Xuchuang Wang, Maoli Liu , Jinhang Zuo , Xutong Liu , John C.S. Lui , and Mohammad Hajiesmaili

In International Conference on Learning Representations , 2025

Bib PDF

@inproceedings{wang2025robust,
  title = {Stochastic Bandits Robust to Adversarial Attacks},
  author = {Wang, Xuchuang and Liu, Maoli and Zuo, Jinhang and Liu, Xutong and Lui, John C.S. and Hajiesmaili, Mohammad},
  booktitle = {International Conference on Learning Representations},
  year = {2025},
}

SIGMETRICS

Asynchronous Multi-Agent Bandits: Fully Distributed vs. Leader-Coordinated Algorithms

Xuchuang Wang*, Yu-Zhen Janice Chen* , Lin Yang , Xutong Liu , Mohammad Hajiesmaili , Don Towsley , and John C.S. Lui

In ACM International Conference on Measurement and Modeling of Computer Systems , 2025

Bib

@inproceedings{wang2025asynchronous,
  title = {Asynchronous Multi-Agent Bandits: Fully Distributed vs. Leader-Coordinated Algorithms},
  author = {Wang*, Xuchuang and Chen*, Yu-Zhen Janice and Yang, Lin and Liu, Xutong and Hajiesmaili, Mohammad and Towsley, Don and Lui, John C.S.},
  booktitle = {ACM International Conference on Measurement and Modeling of Computer Systems},
  year = {2025}
}

AAAI

Best Arm Identification with Quantum Oracles

Xuchuang Wang, Yu-Zhen Janice Chen , Matheus Andrade , Jonathan Allcock , Mohammad Hajiesmaili , John C.S. Lui , and Don Towsley

In The 39th Annual AAAI Conference on Artificial Intelligence , 2025

Bib

@inproceedings{wang2025best,
  title = {Best Arm Identification with Quantum Oracles},
  author = {Wang, Xuchuang and Chen, Yu-Zhen Janice and Guedes de Andrade, Matheus and Allcock, Jonathan and Hajiesmaili, Mohammad and Lui, John C.S. and Towsley, Don},
  booktitle = {The 39th Annual AAAI Conference on Artificial Intelligence},
  year = {2025}
}

NeurIPS

Multi-Fidelity Multi-Armed Bandits Revisited

Xuchuang Wang, Qingyun Wu , Wei Chen , and John C.S. Lui

In Advances in Neural Information Processing Systems , 2023

Bib PDF Slides

@inproceedings{wang2023fidelity,
  title = {Multi-Fidelity Multi-Armed Bandits Revisited},
  author = {Wang, Xuchuang and Wu, Qingyun and Chen, Wei and Lui, John C.S.},
  booktitle = {Advances in Neural Information Processing Systems},
  year = {2023}
}

ICML

Multiple-Play Stochastic Bandits with Shareable Finite-Capacity Arms

Xuchuang Wang, Hong Xie , and John C.S. Lui

In Proceedings of the 39th International Conference on Machine Learning , 2022

Bib PDF Slides

@inproceedings{wang2022multiple,
  title = {Multiple-Play Stochastic Bandits with Shareable Finite-Capacity Arms},
  author = {Wang, Xuchuang and Xie, Hong and Lui, John C.S.},
  booktitle = {Proceedings of the 39th International Conference on Machine Learning},
  pages = {23181--23212},
  year = {2022},
  organization = {PMLR},
}