Contact Info
Lab: 3530 Phelps Hall, UCSB

Phone: (805) 886-5374
gangw [AT]
LinkedIn |Facebook |Renren


18 Mar. 2015 |

Our research website for crowdsourced stock trading is online now. Check it out!

17 Oct. 2014 |

LA Times article covering Whisper and our paper

27 Aug. 2014 |

My first HCI paper got accpted to CSCW'15! Another fun trip to Vancouver!

22 Jul. 2014 |

Our paper on anonymous social network got in IMC'14!

30 Jun. 2014 |

Our crowdturfing study covered by MIT Technology Review

7 May 2014 |

Our adversarial ML paper got in Usenix Security'14!

17 Feb. 2014 |

Going for internship at MSR Redmond this coming summer!

17 Sep. 2013 |

Paper accepted by HotNets'13! "On the Validity of Geosocial Mobility Traces"

11 Jul. 2013 |

IMC'13 accepted our paper on Twitter follower markets!

26 Apr. 2013 |

Our paper on clickstream Sybil detection was accepted by Usenix Security'13!

22 Feb. 2013 |

Our paper on Drive-by download detection was accepted by DSN'13!

8 Feb. 2013 |

Our paper on Social Q&A was accepted by WWW'13!

8 Feb. 2013 |

Our paper on measurement validation of conflict graphs for spectrum allocation was accepted by SIGMETRICS'13!

21 Nov. 2012 |
Our paper on crowdsourcing Sybil detection was accepted by NDSS 2013!

11 Sep.2012 |
Summer internship in LinkedIn security team!

12 Jun.2012 |
Passed MAE: my first Ph.D. milestone!

20 April 2012 |
Presented our paper in WWW'12, Lyon, France.

6 Jan. 2012 |
More press coverage about crowdturfing study, this time on Boston Globe.

13 Dec. 2011 |
Articles about our study on malicious crowdsourcing services (or crowdturfing) on MIT Technology Review and Slashdot.



Time when I sleep less


May. 2015 | IMC

May. 2015 | CSCW

Nov. 2015 | WWW

Ph.D Student

I am a fifth-year Ph.D. student in the Department of Computer Science at UC Santa Barbara. I work in SAND Lab, co-advised by Prof. Ben Y. Zhao and Prof. Heather Zheng.  I received my bachelor degree of Electronic Engineering at Tsinghua University in 2010. I was a research intern at Microsoft Research Redmond in the summer of 2011 and 2014, working with Cormac Herley, Jay Stokes, Weidong Cui, and Helen Wang.


My primary research interests are Privacy and Security, Online Social Networks (OSNs), Crowdsourcing and Mobile Networks. Much of my work is measurement-driven and modeling based. My interests in privacy and security are closely related to web services like OSNs and crowdsourcing systems. The goal is to uncover emerging threats and develop efficient defense techniques.

Publications [Google Scholar]


  • Measurement and security in anonymous social networks (UCSB, 2014-2015)

  • Corwdsourcing for stock investment (UCSB, 2014, 2015)

  • Sybil detection in online social networks (UCSB, 2012-2014)

  • Measurement and defense of online “crowdturfing” (UCSB, 2011-2013)

  • Malware distribution network and drive-by download detection (MSR, Redmond, 2011)