CS Guest Seminar: Bo Li

Date: February 22, 2017
Time: 9:30 am – 10:30 am

 

Computer Science Seminar

Featuring Visiting Lecturer: Bo Li (Vanderbilt University)

Wednesday, February 22, 2017

NPB 3.108A—CS Conference Room

9:30am - 10:30am

 

Title: Secure Learning in Adversarial Environments

 

Abstract: Advances in machine learning have led to rapid and widespread deployment of software-based inference and decision making, resulting in various applications such as data analytics, autonomous systems, and security diag-nostics. Current machine learning systems, however, assume that training and test data follow the same, or similar, distributions, and do not consider active adversaries manipulating either distribution. Recent work has demonstrated that motivated adversaries can circumvent anomaly detection or classification models at test time through evasion attacks, or can inject well-crafted malicious instances into training data to induce errors in classification through poi-soning attacks. In addition, by undermining the integrity of learning systems, the privacy of users' data can also be com-promised.


In this talk, she will describe her recent research addressing evasion attacks, poisoning attacks, and privacy problems for machine learning systems in adversarial environments. The key approach is to utilize game theoretic analysis and model the interactions between an intelligent adversary and a machine learning system as a Stackelberg game, allow-ing us to design robust learning strategies which explicitly account for an adversary's optimal response. She'll briefly discuss human subject experiments that support the results of mathematical models, and she will also introduce a real world malware detection system deployed based on adversarial machine learning analysis.

 

Short Bio: Dr. Bo Li is a postdoctoral research fellow in the department of Electrical Engineering and Computer Sci-ence at University of Michigan, and is a recipient of the Symantec Research Labs Graduate Fellowship in 2015. Her re-search focuses on both theoretical and practical aspects of machine learning, security, privacy, game theory, social net-works, and adversarial deep learning. She has designed several robust learning algorithms, a scalable framework for achieving robustness for a range of learning methods, and a privacy preserving data publishing system. She is also ac-tive in adversarial deep learning research for training generative adversarial networks (GAN) and designing robust deep neural networks against adversarial examples. Her website is http://www.crystal-boli.com/home.html

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