Lab: 3530 Phelps Hall, UCSB
Phone: (805) 886-5374
Email: gangw [AT]

Google Scholar


Attacks and Defenses in Large Online Communities
    Uber Inc., San Francisco, CA, February 1, 2016;
    LinkedIn Inc., Mountain View, CA, December 2, 2015.

Whispers in the Dark: Analysis of an Anonymous Social Network
    The14th Internet Measurement Conference, Vancouver, BC, Canada, November 5, 2014.

Man vs. Machine: Practical Adversarial Detection of Malicious Crowdsourcing Workers
    Microsoft Membership PM R&D Team, Redmond, WA, September 2, 2014;
    Microsoft Azure Data Science and Security Team, Redmond, WA, August 27, 2014;
    The 23rd USENIX Security Symposium, San Diego, CA, 2014 August 20, 2014;
    UW-MSR Summer Institute, Seattle, WA, July 30, 2014.

You are How You Click: Clickstream Analysis for Sybil Detection
    The 22nd USENIX Security Symposium, Washington, DC, WA, August 15, 2013.

Wisdom in the Social Crowd: an Analysis of Quora
    The 22nd International World Wide Web Conference (WWW), Rio de Janeiro, Brazil, May 16, 2013.

Clickstream Models & Sybil Detection
    Security Team of Renren Inc., Beijing, China, March 15, 2013.

Social Turing Tests: Crowdsourcing Sybil Detection
    The 20th Annual Network & Distributed System Security Symposium (NDSS), San Diego, CA, February 26, 2013.

Fighting Fire With Fire: Crowdsourcing Security Threats and Solutions on the Social Web
    AT&T Security Research Center, Middletown, NJ, January 31, 2013.

Crowdsourcing: Opportunity or New Threat?
    Major Area Exam (MAE), UCSB, July 12, 2012. (ReadingList)

Serf and Turf: Crowdturfing for Fun and Profit
    The 21st International World Wide Web Conference (WWW), Lyon, France, April 21, 2012.

Experimental Study on Neighbor Selection Policy for Phoenix Network Coordinate System
    The International Workshop on Peer-To-Peer Networking (P2PNet), St.-Petersburg, Russia, October 14, 2009.


Understanding and Defending Against Malicious Crowdsourcing
    SaTCPI, Washington, WA, January, 2015.

Characterizing and Detecting Malicious Crowdsourcing
    Workshop of ACM SIGCOMM, Hong Kong, China, August, 2013.

I am the Antenna: Accurate Outdoor AP Location using Smartphone
    Future of Mobile Workshop at Google, Mountain View, CA, May, 2012.

Polaris, A Distributed Online Social Network
    Engineering Insights Conference, UCSB, April, 2011.