Posts by Collection

portfolio

publications

Fusing Reward and Dueling Feedback in Stochastic Bandits

Published in ICML, 2025

This paper proposes novel algorithms (ElimFusion and DecoFusion) to fuse absolute reward and relative dueling feedback in multi-armed bandits, achieving regret bounds that adaptively leverage the more informative feedback type. Theoretical and empirical results demonstrate significant performance gains over baselines.

Recommended citation: Wang, X. et al. (2025). "Fusing Reward and Dueling Feedback in Stochastic Bandits." arXiv preprint arXiv:2504.15812.
Download Paper

Practical Adversarial Attacks on Stochastic Bandits via Fake Data Injection

Published in arXiv, 2025

We propose Fake Data Injection, a practical attack on stochastic bandits where the adversary injects limited, bounded fake feedback. Our strategies efficiently deceive UCB and Thompson Sampling into favoring a target arm with minimal cost, exposing critical vulnerabilities in real-world applications.

Recommended citation: Zeng, Q. et al. (2025). "Practical Adversarial Attacks on Stochastic Bandits via Fake Data Injection." arXiv preprint arXiv:2505.21938.
Download Paper

talks

teaching

Teaching Assistant of Mathematical Analysis

undergraduate course, University of Science and Technology, School of Mathematical Science, 2023

Main Responsibilities:

  • Grading assignments and exams
  • Conducting tutorial sessions
  • Developing lecture notes

Teaching Assistant of Data Structure & Algorithm

undergraduate course, University of Science and Technology, School of Information Science and Technology, 2024

Main Responsibilities:

  • Grading assignments and exams
  • Developing lecture notes
  • Designing and evaluating experiments

Teaching Assistant of Computer Programming

undergraduate course, University of Science and Technology, School of Information Science and Technology, 2024

Main Responsibilities:

  • Grading assignments and exams
  • Conducting tutorial sessions
  • Developing lecture notes
  • Designing and evaluating experiments
  • Setting up and maintaining an online judge system

Teaching Assistant of Java Programming

undergraduate course, City University of Hong Kong, Department of Computer Science, 2025

Main Responsibilities:

  • Creating and designing assignments
  • Grading assignments and exams