1 code implementation • 26 Apr 2022 • Chengzhi Mao, Kevin Xia, James Wang, Hao Wang, Junfeng Yang, Elias Bareinboim, Carl Vondrick
Visual representations underlie object recognition tasks, but they often contain both robust and non-robust features.
1 code implementation • 22 Apr 2022 • Wei Hao, Aahil Awatramani, Jiayang Hu, Chengzhi Mao, Pin-Chun Chen, Eyal Cidon, Asaf Cidon, Junfeng Yang
In this paper, we introduce a new evasive attack, DIVA, that exploits these differences in edge adaptation, by adding adversarial noise to input data that maximizes the output difference between the original and adapted model.
1 code implementation • 7 Apr 2022 • Matthew Lawhon, Chengzhi Mao, Junfeng Yang
In this paper, we propose a novel defense that can dynamically adapt the input using the intrinsic structure from multiple self-supervised tasks.
1 code implementation • ICCV 2021 • Chengzhi Mao, Mia Chiquier, Hao Wang, Junfeng Yang, Carl Vondrick
We find that images contain intrinsic structure that enables the reversal of many adversarial attacks.
1 code implementation • 25 Feb 2021 • Yu Jian Wu, Hongyi Wang, Yuhong Zhong, Asaf Cidon, Ryan Stutsman, Amy Tai, Junfeng Yang
The overhead of the kernel storage path accounts for half of the access latency for new NVMe storage devices.
Operating Systems Databases
1 code implementation • CVPR 2021 • Chengzhi Mao, Augustine Cha, Amogh Gupta, Hao Wang, Junfeng Yang, Carl Vondrick
We introduce a framework for learning robust visual representations that generalize to new viewpoints, backgrounds, and scene contexts.
no code implementations • 16 Dec 2020 • Kexin Pei, Zhou Xuan, Junfeng Yang, Suman Jana, Baishakhi Ray
We thus train the model to learn execution semantics from the functions' micro-traces, without any manual labeling effort.
1 code implementation • 9 Nov 2020 • Jake Lee, Junfeng Yang, Zhangyang Wang
We present the results of three experiments comparing representations of millions of images with exhaustively shifted objects, examining both local invariance (within a few pixels) and global invariance (across the image frame).
1 code implementation • 2 Oct 2020 • Kexin Pei, Jonas Guan, David Williams-King, Junfeng Yang, Suman Jana
We present XDA, a transfer-learning-based disassembly framework that learns different contextual dependencies present in machine code and transfers this knowledge for accurate and robust disassembly.
1 code implementation • ECCV 2020 • Chengzhi Mao, Amogh Gupta, Vikram Nitin, Baishakhi Ray, Shuran Song, Junfeng Yang, Carl Vondrick
Although deep networks achieve strong accuracy on a range of computer vision benchmarks, they remain vulnerable to adversarial attacks, where imperceptible input perturbations fool the network.
1 code implementation • 22 Apr 2020 • Robby Costales, Chengzhi Mao, Raphael Norwitz, Bryan Kim, Junfeng Yang
We propose a live attack on deep learning systems that patches model parameters in memory to achieve predefined malicious behavior on a certain set of inputs.
no code implementations • 6 Oct 2019 • Guangyu Shen, Chengzhi Mao, Junfeng Yang, Baishakhi Ray
Due to the inherent robustness of segmentation models, traditional norm-bounded attack methods show limited effect on such type of models.
1 code implementation • NeurIPS 2019 • Chengzhi Mao, Ziyuan Zhong, Junfeng Yang, Carl Vondrick, Baishakhi Ray
Deep networks are well-known to be fragile to adversarial attacks.
2 code implementations • NeurIPS 2018 • Shiqi Wang, Kexin Pei, Justin Whitehouse, Junfeng Yang, Suman Jana
Our approach can check different safety properties and find concrete counterexamples for networks that are 10$\times$ larger than the ones supported by existing analysis techniques.
1 code implementation • 15 Jul 2018 • Dongdong She, Kexin Pei, Dave Epstein, Junfeng Yang, Baishakhi Ray, Suman Jana
However, even state-of-the-art fuzzers are not very efficient at finding hard-to-trigger software bugs.
3 code implementations • 28 Apr 2018 • Shiqi Wang, Kexin Pei, Justin Whitehouse, Junfeng Yang, Suman Jana
In this paper, we present a new direction for formally checking security properties of DNNs without using SMT solvers.
no code implementations • 5 Dec 2017 • Kexin Pei, Yinzhi Cao, Junfeng Yang, Suman Jana
Finally, we show that retraining using the safety violations detected by VeriVis can reduce the average number of violations up to 60. 2%.
no code implementations • ICCV 2017 • Junfeng Yang, Xueyang Fu, Yuwen Hu, Yue Huang, Xinghao Ding, John Paisley
We incorporate domain-specific knowledge to design our PanNet architecture by focusing on the two aims of the pan-sharpening problem: spectral and spatial preservation.
3 code implementations • 18 May 2017 • Kexin Pei, Yinzhi Cao, Junfeng Yang, Suman Jana
First, we introduce neuron coverage for systematically measuring the parts of a DL system exercised by test inputs.