Zikang Xiong

PhD student @ Purdue CS


I am a PhD student of Computer Science Department, Purdue University. My advisor is Suresh Jagannathan. I am working on attack/defense/assurance of deep learning, especially deep reinforcement learning, from the perspective of formal methods. I received my B.Eng. of Software Engineering from University of Electronic Science and Technology of China in 2018.

CV updated at 2021-04-07.


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Verifiable Reinforcement Learning

Although deep neural networks have achieved promising performance in various tasks, they are generally used as black-box functions without any formal guarantee on their properties. For example, without formal analysis, it is unclear whether a neural-network-controlled drone, which is operated in a complex environment, will collide with the ground or not. This line of work provided verifiable safety guarantee for cyber-physical-systems (e.g., robots, UVA) trained with deep reinforcement learning.

Scalable Synthesis of Verified Controllers in Deep Reinforcement Learning
Zikang Xiong, and Suresh Jagannathan.
Under Review [pdf]

An Inductive Synthesis Framework for Verifiable Reinforcement Learning.
He Zhu, Zikang Xiong, Stephen Magill and Suresh Jagannathan.
PLDI 2019 [pdf] [tool]
Distinguished Paper

Adversarial Attack & Defense of Deep Reinforcement Learning

Neural network controllers are not robust to adversarial attacks, which exposes them to great threats from malicious attackers. We aim to explore both attack and defense techniques for deep-neural-network controlled systems, thus providing more robust neural network controllers.

Robustness to Adversarial Attacks in Learning-Enabled Controllers
Zikang Xiong, Joe Eappen, He Zhu and Suresh Jagannathan.
Adaptive and Learning Agents Workshop at AAMAS 2021 & Under Submission [pdf] [tool] [vedio demo]


ADHS 2021 AEC, CAV 2020 AEC, PLDI 2020 AEC


📚 My recent paper reading notes.