Hi, all! I am a fifth-year Ph.D. student at Purdue Computer Science. I am fortunate to be supervised by Prof. Xiangyu Zhang and co-advised by Prof. Jean Honorio. Before coming to Purdue, I received my B.S. from National Elite Program at Nanjing University and was supervised by Prof. Yang Yu. I also collaborated with Xin Lu from Adobe and Pannaga Shivaswamy from Netflix.
My PhD research focuses on Robust Machine Learning. Recently, I also did work in Recommendation System, Multi-Modality, Reinforcement Learning, Natural Language Processing, Computer Vision, Logical Reasoning and Out-of-distribution Generalization. I am looking for jobs requiring impactful and innovative product or academical research.

/ /

Last updated at Aug 2022


  • [05/2022] Our paper on safety of federated learning got Best Paper Award in ECCV 2022 AROW Workshop.
  • [05/2022] I start research internship in Netflix Research.
  • [05/2022] We got one paper on backdoor defense accepted by ICML 2022.
  • [03/2022] We got two papers accepted by CVPR 2022, congrats on all the collaboraters.
  • [12/2021] Our paper on input inversion is accepted by NDSS 2022
  • [10/2021] Our paper on backdoor removal is accepted by S&P 2022
  • [05/2021] I start summer research internship at Adobe Emerging Product Group!
  • [05/2021] Our paper on trojan model detection is accepted by ICML 2021.
  • [04/2021] Our paper on deriving robustness upper bound through information theory is accepted by ISIT 2021.
  • [12/2020] Our paper on feature space attack is accepted by AAAI 2021.
  • [11/2020] My advisor Xiangyu Zhang, is honored with title Samuel D. Conte.
  • [01/2020] Our paper on debugging neural network is accepted by ICSE 2020.
  • [10/2019] My undergrad work on end-to-end combination of reasoning and perception is accepted by NeurIPS 2019.

Selected Publications [Full List]

(* represents equal contribution)

Responsive image

Reducing Accuracy Gap in Adversarial Training by Discriminating Adversarial Samples
Qiuling Xu , Shengwei An, Guanhong Tao, Jean Honorio and Xiangyu Zhang
Technical Report

Responsive image

Bounded Adversarial Attack on Deep Content Features
(STOA trade-off between imperceptibility and success)
Qiuling Xu , Guanhong Tao and Xiangyu Zhang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2022)
[Paper] [Code] [Bibtex] [Talk] [Poster] [Arxiv]

Responsive image

Better Trigger Inversion Optimization in Backdoor Scanning
Guanhong Tao , Guangyu Shen , Yingqi Liu , Shengwei An , Qiuling Xu , Shiqing Ma , Pan Li , and Xiangyu Zhang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2022) (Oral)
[Paper] [Bibtex]

Responsive image

Constrained Optimization with Dynamic Bound-scaling for Effective NLP Backdoor Defense
Guangyu Shen , Yingqi Liu , Guanhong Tao Qiuling Xu , Zhuo Zhang , Shiqing Ma , Shengwei An and Xiangyu Zhang
International Conference on Machine Learning (ICML 2022)
[Paper] [Bibtex]

Responsive image

Model Orthogonalization: Class Distance Hardening in Neural Networks for Better Security
Guanhong Tao , Yingqi Liu , Guangyu Shen , Qiuling Xu , Shengwei An , Zhang Zhuo , Pan Li , and Xiangyu Zhang
Proceedings of IEEE Symposiums on Security and Privacy (S&P 2022)
[Paper] [Bibtex]

Responsive image

A Le Cam Type Bound for Adversarial Learning and Applications
Qiuling Xu* , Kevin Bello*, and Jean Honorio
2021 IEEE International Symposium on Information Theory (ISIT 2021)
[Arxiv] [Bibtex] [Short Talk] [Long Talk]

Responsive image

Towards Feature Space Adversarial Attack by Style Perturbation
Qiuling Xu , Guanhong Tao , Siyuan Cheng and Xiangyu Zhang
35th AAAI Conference on Artificial Intelligence (AAAI 2021)
[Arxiv] [Code] [Bibtex] [Short Talk] [Long Talk] [Poster]

Responsive image

Bridging Machine Learning and Logical Reasoning by Abductive Learning
Wangzhou Dai*, Qiuling Xu*, Yang Yu* and Zhihua Zhou
32th Advances in Neural Information Processing Systems (NeurIPS 2019)
[Paper] [Code] [Arxiv] [Bibtex]



Conference Reviewer: ICLR 2023, AAAI 2023, NeurIPS 2022, CVPR2022, ICML2022, ECCV2022, ASE2020, CCS2020, FSE2020

Journal Reviewer: TCSVT, TIP, EMSE


Responsive image

Personal Opearting System
Implementing the OS from scratch, including BIOS, Driver, Root File System, Segmentation, System Call, Process Support and Shells. You can play the video game"Puzzle" on it. The OS runs on emulator QEMU.


Related Courses: Learning Theory, Reinforcement Learning, Graph Model, Natural Language Processing, Statistical Machine Learning.
Language: Python, C, C++, SQL, HTML.
Tools: Pytorch, Tensorflow, MXNET.


Purdue Computer Science
N University St, West Lafayette, IN 47907
xu1230 $at$ PURDUE *dot* edu