Sicong Zhang (张思聪)

Ph.D Student

Department of Computer Science

Georgetown University


I'm a Ph.D Student and Graduate Research Assistant in the Department of Computer Science at Georgetown University. Before this, I obtained my B.E. in Computer Science from Department of Computer Science and Technology(CS&T), Tsinghua University.

I am a member of the InfoSense Group. My research interests lie in Information RetrievalPrivacy-Preserving Information Retrieval, Natural Language Processing, and Computational Linguistics. My advisor is : Grace Hui Yang

News: I passed my Ph.D. Dissertation Defense on October 25th, 2017! I would like to express my gratitude for everyone who have helped me during these years!

 

Academic Research

My current research focus is privacy-preserving information retreival. I have also done research on information retrieval theory and model, session search and information exposure detection.

 

Publications InfoSense Publication List

2018

[18].  Grace Hui Yang and Sicong Zhang. Differential Privacy for Information Retrieval. Tutorial in the 11th ACM International Conference on Web Search and Data Mining (WSDM 2018). February 5-9, 2018. Los Angeles, USA.

2017

[17].  Grace Hui Yang, Xuchu Dong, Jiyun Luo and Sicong Zhang. Session search modeling by partially observable Markov decision process. Information Retrieval Journal (IRJ). Volume 20. October, 2017.

[16].  Sicong Zhang and Grace Hui Yang. Deriving Differentially Private Session Logs for Query Suggestion. In the 3rd ACM International Conference on the Theory of Information Retrieval (ICTIR 2017). October 1-4, 2017. Amsterdam, Netherlands.

[15].  Grace Hui Yang and Sicong Zhang. Differential Privacy for Information Retrieval. Tutorial in the 3rd ACM International Conference on the Theory of Information Retrieval (ICTIR 2017). October 1-4, 2017. Amsterdam, Netherlands.

2016

[14].  Sicong Zhang, Grace Hui Yang, Lisa Singh, Li Xiong. Safelog: Supporting Web Search and Mining by Differentially-Private Query Logs. AAAI Fall Symposium on Privacy and Language Technologies. (AAAI 2016 FSS). November 17-19, 2016. Virginia, USA.

[13].  Janet Zhu, Sicong Zhang, Lisa Singh, Grace Hui Yang and Micah Sherr. Generating Risk Reduction Recommendations to Decrease Vulnerability of Public Online Profiles (short paper). The 2016 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2016). August 18-21, 2016. San Francisco, CA, USA.

[12].  Sicong Zhang, Grace Hui Yang, Lisa Singh. Anonymizing Query Logs by Differential Privacy (Short paper). In Proceedings of the 39th Annual ACM SIGIR Conference (SIGIR 2016). July 17-21, 2016. Pisa, Italy.

2015

[11].  Lisa Singh, Grace Hui Yang, Micah Sherr, Andrew Hian-Cheong, Kevin Tian, Janet Zhu and Sicong Zhang. Public Information Exposure Detection:Helping Users Understand Their Web Footprints. In Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2015).August 25-28, 2015. Paris, France.

[10].  Sicong Zhang, Hui Yang, Lisa Singh. Applying Epsilon-Differential Private Query Log Releasing Scheme to Document Retrieval In Proceedings of the 2nd International Workshop on Privacy-Preserving IR (PIR 2015) in SIGIR 2015. August 9-August 13, 2015. Santiago, Chile.

[09].  Jiyun Luo, Sicong Zhang, Xuchu Dong and Hui Yang. Designing States, Actions, and Rewards for Using POMDP in Session Search. In Proceedings of The 37th European Conference on Information Retrieval (ECIR 2015).March 29-April 02, 2015. Vienna, Austria.

[08].  Hui Yang, Dongyi Guan, Sicong Zhang. The Query-Change Model: Modeling Session Search as a Markov Decision Process. ACM Transactions on Information Systems (TOIS). 2015.

[07].  Lisa Singh, Hui Yang, Micah Sherr, Yifang Wei, Andrew Hian-Cheong, Kevin Tian, Janet Zhu, Sicong Zhang, Tavish Vaidya, Elchin Asgarli. Helping Users Understand Their Web Footprints (poster). In the Proceedings of the 24th International World Wide Web Conference (WWW 2015). May 18-22, 2015. Florence, Italy.

2014

[06].  Sicong Zhang, Hui Yang, Lisa Singh. Increased Information Leakage from Text. In Proceedings of the 1st International Workshop on Privacy-Preserving IR (PIR 2014) in SIGIR 2014. July 6 - July 11, 2014. Gold Coast, Australia.

[05].  Sicong Zhang, Jiyun Luo, Hui Yang. A POMDP Model for Content-Free Document Re-ranking (short paper). In Proceedings of the 37th Annual ACM SIGIR Conference (SIGIR 2014). July 6 - July 11, 2014. Gold Coast, Australia.

[04].  Jiyun Luo, Sicong Zhang, Hui Yang. Win-Win Search: Dual-Agent Stochastic Game in Session Search. In Proceedings of the 37th Annual ACM SIGIR Conference (SIGIR 2014). July 6 - July 11, 2014. Gold Coast, Australia.

2013

[03].  Sicong Zhang and Hui Yang. Applying the Query Change Retrieval Model on Session Search - Georgetown at TREC 2013 Session Track. In Notebook of the TExt Retrieval Conference 2013 (TREC 2013). Gaithersburgh, MD, USA.

[02].  Sicong Zhang, Dongyi Guan and Hui Yang. Query Change as Relevance Feedback in Session Search (short paper). In Proceedings of the 36th Annual ACM SIGIR Conference Conference (SIGIR 2013). July 28 - August 1, 2013. Dublin, Ireland.

[01].  Dongyi Guan, Sicong Zhang, and Hui Yang. Utilizing Query Change for Session Search. In Proceedings of the 36th Annual ACM SIGIR Conference Conference (SIGIR 2013). July 28 - August 1, 2013. Dublin, Ireland.

 

Academic Activities

Our Website for Privacy-Preserving Information Retrieval.

Student Organizer. The first Privacy-Preserving IR workshop (PIR 2014) co-located with SIGIR 2014, Gold Coast, Australia.

Student Organizer. The third Privacy-Preserving IR workshop (PIR 2016) co-located with SIGIR 2016, Pisa, Italy.

Tutorial Experience. I gave a Tutorial: Differential Privacy for Information Retrieval (DP4IR) in ICTIR 2017, Amsterdam, Netherlands.

Tutorial Experience. I will give an updated version of the Tutorial: Differential Privacy for Information Retrieval in WSDM 2018, Los Angeles, USA.

 

Education

Aug.2012 ~ Now

Ph.D Student, Graduate Research Assistant, in Department of Computer Science,
Georgetown University
, DC, USA.

Aug.2012 ~ May.2014

M.S., in Computer Science. Department of Computer Science,
Georgetown University
, DC, USA.

Aug.2008 ~ Jul.2012

B.E. in Computer Science. Department of Computer Science and Technology,
Tsinghua University, BEIJING, CHINA.

Internship Experiences

May.2016 ~ Aug.2016

Software Engineer Internship at Facebook, Inc. Menlo Park, CA, USA.

Jul.2011 ~ Aug.2011

Academic Summer Internship in Department of Computer Science and Engineering,
University of Notre Dame,
IN, USA.

 

Contact Information

Address: 315 Saint Mary's Hall,37th and O Streets, NW Washington, DC 20057-1232 

Email: sz303@georgetown DOT edu (Please replace the DOT by a real dot)

 

Last Updated: Nov.1 st, 2017.