Shirin Nilizadeh, Ph.D.

Postdoctoral Researcher

@SecLab
Computer Science Department
UC at Santa Barbara

Email: nilizadeh<at>cs.ucsb.edu
Office: Harold Frank Hall, Rm 2114


About Me

This is Shirin Nilizadeh, Postdoc in Seclab at UCSB, working with Prof. Christopher Kruegel and Prof. Giovanni Vigna. I received my Ph.D. in Security Informatics from IUB under supervision of Prof. Apu Kapadia. For my Ph.D. I received a two-year fellowship from the School of Informatics and Computing. Following my doctorate and before joining the Seclab, I was a joint post-doctoral researcher at the Center for Complex Networks and Systems Research (CNetS) and Privacy Lab at Indiana University.

My research interests span various topics in computer security and privacy including:
(a) Detecting and preventing malicious and abusive activities and content,
(b) Designing privacy-aware decentralized architectures for socially networked systems,
(c) User and data privacy in the era of big data,
(d) Social computing.

Currently my research focuses on developing novel technologies for protecting user and data security and privacy in the areas of web 2.0 platforms, and Internet of Things.

In my research I have applied techniques from privacy enhancing technologies, distributed systems, peer-to-peer networks, applied cryptography, machine Learning, data mining, network science and data science.

Latest News

July 2017: Our paper "POISED: Spotting Twitter Spam Off the Beaten Paths" got accepted to ACM CCS 2017.
July 2017: Joint the program committee of IKT 2017
July 2017: Received a scholarship to attend Grace Hopper Conference 2017
March 2017: Joint the program committee of PETS 2018
Jan 2017: Gave a talk on "Twitter's Glass Ceiling" at Network Science IGERT
July 2016: Joint the shadow program committee of ASIACCS 2017

Education

Ph.D. in Security Informatics, Sep 2014
School of Informatics and Computing
Indiana Univeristy Bloomington
Dissertation: Privacy-aware Decentralized Architectures for Socially Networked Systems
Adviser: Prof. Apu Kapadia

M.Sc. in Information Security, Feb 2007
Computer Engineering and Information Technology
Amirkabir University of Technology
Thesis title: Linear approximations Representation of Block Ciphers
Adviser: Prof. Babak Sadeghian

B.Sc. in Computer Engineering, Jun 2004
Department of Computer Engineering
Islamic Azad University at Najafabad

Publications

Shirin Nilizadeh, Francois Labreche, Alireza Sedighian, Ali Zand, José Fernandez, Gianluca Stringhini, Christopher Kruegel, Giovanni Vigna, "POISED: Spotting Twitter Spam Off the Beaten Paths," In Proceedings of ACM Conference on Computer and Communications Security (CCS ’17), Texas, USA, 2017.

Shirin Nilizadeh, Anne Groggel, Peter Lista, Srijita Das, Yong-Yeol Ahn, Apu Kapadia, and Fabio Rojas, "Twitter's Glass Ceiling: The Effect of Perceived Gender on Online Visibility," In Proceedings of The International AAAI Conference on Web and Social Media (ICWSM '16), Cologne, Germany, May 17–20, 2016. (Acceptance rate: 17%)

Shirin Nilizadeh, Apu Kapadia, and Yong-Yeol Ahn, "Community-Enhanced De-anonymization of Online Social Networks," In Proceedings of 21st ACM Conference on Computer and Communications Security (CCS ’14), Arizona, USA, 2014. (Acceptance rate: 19%) [bibtex][Slides]

Shirin Nilizadeh, "Privacy-aware Decentralized Architectures for Socially Networked Systems," Ph.D. Thesis, Indiana University Bloomington, Semtember 2014. [bibtex]

Vaibhav Garg and Shirin Nilizadeh, "Craigslist Scams and Community Composition: Investigating Online Fraud Victimization," IEEE International Workshop on Cyber Crime (IWCC 2013), San Francisco, USA, May, 2013. [bibtex]

Shirin Nilizadeh, Sonia Jahid, Prateek Mittal, Nikita Borisov, and Apu Kapadia, "Cachet: A Decentralized Architecture for Privacy Preserving Social Networking with Caching," In Proceedings of 8th ACM International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT), Nice, France, Dec. 2012. [bibtex][Slides]

Sonia Jahid, Shirin Nilizadeh, Prateek Mittal, Nikita Borisov, and Apu Kapadia, "DECENT: A Decentralized Architecture for Enforcing Privacy in Online Social Networks," The 4th IEEE International Workshop on Security and Social Networking (SESOC '12), Lugano, Switzerland, Mar 19, 2012. (Acceptance rate: 29%) [bibtex][Slides]

Shirin Nilizadeh, Naveed Alam, Nathaniel Husted, and Apu Kapadia, "Pythia: A Privacy Aware, Peer-to-Peer Network for Social Search," In Proceedings of 2011 ACM Workshop on Privacy in the Electronic Society (WPES '11), pp. 43--48, Chicago, Illinois, October 17, 2011. (Acceptance rate: 28%) [bibtex][Slides]

Shirin Nilizadeh, Naveed Alam, Nathaniel Husted, and Apu Kapadia. "Pythia: A Privacy Aware, Peer-to-Peer Network for Social Search," Technical Report TR687, Indiana University Bloomington, Oct. 2010. [bibtex][iu-link]

Shirin Nilizadeh, and Babak Sadeghiyan, "Linear Approximations Representation of Moamagar Block Cipher," 12th International Conference on Computer Science (CSICC), Iran, 2007.

Talks

“Twitter's Glass Ceiling: The Effect of Perceived Gender on Online Visibility,” Network Science IGERT Seminars , UCSB, Januray 18th, 2017. [Slides]

“Twitter’s Reaction on Revelations about Government’s Internet Surveillance program,” The Workshop on Surveillance & Technology (SAT) held with the Privacy Enhancing Technologies Symposium (PETS), June 29th, 2015. [Slides]

“Community-Enhanced De-anonymization of Online Social Networks,” The 21st ACM Conference on Computer and Communications Security (CCS’14), Scottsdale, Arizona, USA, November 3-7, 2014. [Slides]

“Privacy-aware Decentralized Architectures for Socially Networked Systems,” Student Knowledge Exchange on Technical Aspects of Privacy, University of Notre Dame, September 2013. [Slides]

“Pythia: A Privacy Aware, Peer-to-Peer Network for Social Search,” 2011 ACM Workshop on Privacy in the Electronic Society (WPES ’11), Chicago, Illinois, October 2011. [Slides]

“Linear Approximations Representation of Moamagar Block Cipher,” 12th International Conference on Computer Science (CSICC), Shahid Beheshti University (SBU), Tehran, Iran, February 2007. [Slides]

Posters

Shirin Nilizadeh, "Community-enhanced De-anonymization of Social Networks," Women in Cyber Security, April 2014. [pdf]

Shirin Nilizadeh, Sonia Jahid, Prateek Mittal, Nikita Borisov and Apu Kapadia, "Cachet: A Decentralized Architecture for Privacy Preserving Social Networking with Caching," Grace Hopper Celebration of Women in Computing, 2012.[pdf]

Shirin Nilizadeh, Sonia Jahid, Prateek Mittal, Nikita Borisov and Apu Kapadia, "DECENT: A Decentralized Architecture for Enforcing Privacy in Online Sociclai Networks," Indiana Celebration of Women in Computing (InWIC), 2012. [pdf] [Winner of Best Graduate Poster Award]

Azadeh Nematzadeh and Shirin Nilizadeh, "Classification Approach toward Craigslist Scam Detection," Graduate cohort workshop, Boston, 2011.

Shirin Nilizadeh, Naveed Alam, Apu Kapadia, "Peer-to-Peer Aardvark," Indiana Celebration of Women in Computing (InWIC), 2010. [pdf] [Runner up for the Best Graduate Poster Award]