activity
20112022
most citedSocial Turing Tests: Crowdsourcing Sybil Detection

169 citations · 614 across the 29 of their papers we have counts for

collaborators

31 papers

cs.CR2022★ 11 cited

Post-breach Recovery: Protection against White-box Adversarial Examples for Leaked DNN Models

Shawn Shan, Wenxin Ding, Emily Wenger +2

Server breaches are an unfortunate reality on today's Internet. In the context of deep neural network (DNN) models, they are particularly harmful, because a leaked model gives an a…

cs.CR2022★ 2 cited

Assessing Privacy Risks from Feature Vector Reconstruction Attacks

Emily Wenger, Francesca Falzon, Josephine Passananti +2

In deep neural networks for facial recognition, feature vectors are numerical representations that capture the unique features of a given face. While it is known that a version of…

cs.CR2021

SoK: Anti-Facial Recognition Technology

Emily Wenger, Shawn Shan, Haitao Zheng +1

The rapid adoption of facial recognition (FR) technology by both government and commercial entities in recent years has raised concerns about civil liberties and privacy. In respon…

cs.CR2021★ 11 cited

Poison Forensics: Traceback of Data Poisoning Attacks in Neural Networks

Shawn Shan, Arjun Nitin Bhagoji, Haitao Zheng +1

In adversarial machine learning, new defenses against attacks on deep learning systems are routinely broken soon after their release by more powerful attacks. In this context, fore…

cs.CR2021★ 38 cited

"Hello, It's Me": Deep Learning-based Speech Synthesis Attacks in the Real World

Emily Wenger, Max Bronckers, Christian Cianfarani +4

Advances in deep learning have introduced a new wave of voice synthesis tools, capable of producing audio that sounds as if spoken by a target speaker. If successful, such tools in…

cs.PF2021★ 11 cited

Towards Performance Clarity of Edge Video Analytics

Zhujun Xiao, Zhengxu Xia, Haitao Zheng +2

Edge video analytics is becoming the solution to many safety and management tasks. Its wide deployment, however, must first address the tension between inference accuracy and resou…

cs.CR2021★ 16 cited

A Real-time Defense against Website Fingerprinting Attacks

Shawn Shan, Arjun Nitin Bhagoji, Haitao Zheng +1

Anonymity systems like Tor are vulnerable to Website Fingerprinting (WF) attacks, where a local passive eavesdropper infers the victim's activity. Current WF attacks based on deep…

cs.CV2020

Backdoor Attacks Against Deep Learning Systems in the Physical World

Emily Wenger, Josephine Passananti, Arjun Bhagoji +3

Backdoor attacks embed hidden malicious behaviors into deep learning models, which only activate and cause misclassifications on model inputs containing a specific trigger. Existin…

cs.CR2020★ 12 cited

Blacklight: Scalable Defense for Neural Networks against Query-Based Black-Box Attacks

Huiying Li, Shawn Shan, Emily Wenger +3

Deep learning systems are known to be vulnerable to adversarial examples. In particular, query-based black-box attacks do not require knowledge of the deep learning model, but can…

cs.CR2020★ 48 cited

Fawkes: Protecting Privacy against Unauthorized Deep Learning Models

Shawn Shan, Emily Wenger, Jiayun Zhang +3

Today's proliferation of powerful facial recognition systems poses a real threat to personal privacy. As Clearview.ai demonstrated, anyone can canvas the Internet for data and trai…

cs.SE2019★ 5 cited

Trimming Mobile Applications for Bandwidth-Challenged Networks in Developing Regions

Qinge Xie, Qingyuan Gong, Xinlei He +4

Despite continuous efforts to build and update network infrastructure, mobile devices in developing regions continue to be constrained by limited bandwidth. Unfortunately, this coi…

cs.LG2019★ 9 cited

"How do urban incidents affect traffic speed?" A Deep Graph Convolutional Network for Incident-driven Traffic Speed Prediction

Qinge Xie, Tiancheng Guo, Yang Chen +3

Accurate traffic speed prediction is an important and challenging topic for transportation planning. Previous studies on traffic speed prediction predominately used spatio-temporal…

cs.CR2019★ 30 cited

Piracy Resistant Watermarks for Deep Neural Networks

Huiying Li, Emily Wenger, Shawn Shan +2

As companies continue to invest heavily in larger, more accurate and more robust deep learning models, they are exploring approaches to monetize their models while protecting their…

cs.LG2019★ 7 cited

Regula Sub-rosa: Latent Backdoor Attacks on Deep Neural Networks

Yuanshun Yao, Huiying Li, Haitao Zheng +1

Recent work has proposed the concept of backdoor attacks on deep neural networks (DNNs), where misbehaviors are hidden inside "normal" models, only to be triggered by very specific…

cs.CR2019★ 7 cited

Understanding the Effectiveness of Ultrasonic Microphone Jammer

Yuxin Chen, Huiying Li, Steven Nagels +4

Recent works have explained the principle of using ultrasonic transmissions to jam nearby microphones. These signals are inaudible to nearby users, but leverage "hardware nonlinear…

cs.LG2019★ 75 cited

Gotta Catch 'Em All: Using Honeypots to Catch Adversarial Attacks on Neural Networks

Shawn Shan, Emily Wenger, Bolun Wang +3

Deep neural networks (DNN) are known to be vulnerable to adversarial attacks. Numerous efforts either try to patch weaknesses in trained models, or try to make it difficult or cost…

cs.CR2018★ 5 cited

Wireless Side-Lobe Eavesdropping Attacks

Yanzi Zhu, Ying Ju, Bolun Wang +3

Millimeter-wave wireless networks offer high throughput and can (ideally) prevent eavesdropping attacks using narrow, directional beams. Unfortunately, imperfections in physical ha…

cs.CV2018

Addressing Training Bias via Automated Image Annotation

Zhujun Xiao, Yanzi Zhu, Yuxin Chen +3

Build accurate DNN models requires training on large labeled, context specific datasets, especially those matching the target scenario. We believe advances in wireless localization…

cs.CR2018★ 48 cited

Et Tu Alexa? When Commodity WiFi Devices Turn into Adversarial Motion Sensors

Yanzi Zhu, Zhujun Xiao, Yuxin Chen +4

Our work demonstrates a new set of silent reconnaissance attacks, which leverages the presence of commodity WiFi devices to track users inside private homes and offices, without co…

cs.CR2017★ 12 cited

Automated Crowdturfing Attacks and Defenses in Online Review Systems

Yuanshun Yao, Bimal Viswanath, Jenna Cryan +2

Malicious crowdsourcing forums are gaining traction as sources of spreading misinformation online, but are limited by the costs of hiring and managing human workers. In this paper,…

cs.CR2015

Graph Watermarks

Xiaohan Zhao, Qingyun Liu, Lin Zhou +2

From network topologies to online social networks, many of today's most sensitive datasets are captured in large graphs. A significant challenge facing owners of these datasets is…

cs.SI2014★ 14 cited

Crowds on Wall Street: Extracting Value from Social Investing Platforms

Gang Wang, Tianyi Wang, Bolun Wang +4

For decades, the world of financial advisors has been dominated by large investment banks such as Goldman Sachs. In recent years, user-contributed investment services such as Seeki…

cs.DC2013★ 1 cited

Shortest Paths in Microseconds

Rachit Agarwal, Matthew Caesar, P. Brighten Godfrey +1

Computing shortest paths is a fundamental primitive for several social network applications including socially-sensitive ranking, location-aware search, social auctions and social…

cs.SI2012★ 6 cited

Shortest Paths in Less Than a Millisecond

Rachit Agarwal, Matthew Caesar, P. Brighten Godfrey +1

We consider the problem of answering point-to-point shortest path queries on massive social networks. The goal is to answer queries within tens of milliseconds while minimizing the…