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Rachel Greenstadt

Associate Professor

Computer Science

Dr. Greenstadt's research centers on the privacy and security properties of multi-agent systems and the economics of electronic privacy and information security. Her lab—the Privacy, Security, and Automation Laboratory (PSAL)—focuses on designing more trustworthy intelligent systems that act autonomously and with integrity, so that they can be trusted with important data and decisions. The lab takes a highly interdisciplinary approach to this research, incorporating ideas from artificial intelligence, psychology, economics, data privacy, and system security. However, a common thread of this work has been studying information flow, trustworthiness, and control. Recently, much of PSAL's work has focused on using machine learning to better understand textual communication.


  • PhD, Computer Science, Harvard University, School of Engineering and Applied Science
  • MEng, Electrical Engineering and Computer Science, Massachusetts Institute of Technology
  • SB, Computer Science and Engineering, Massachusetts Institute of Technology

Research/Teaching Interests

Artificial intelligence, privacy, security, multi-agent systems, economics of electronic privacy and information security

Select Publications

  • C-2012 A. Caliskan and R. Greenstadt, “Translate once, translate twice, translate thrice and attribute: Identifying authors and machine translation tools in translated text,"in IEEE Conference on Semantic Computing (ICSC), September 2012.
  • C-2012 M. Atighetchi and M. Mayhew and R. Greenstadt, “Behavior-Based Access, Control Needs, Benefits, and Concepts,” in Military Communications Conference (MILCOM), October 2012.
  • C-2012 A. McDonald, S. Afroz, A. Caliskan, A. Stolerman, and R. Greenstadt, “Use Fewer Instances of the Letter “i": Toward Writing Style Anonymization," in Privacy Enhancing Technologies Symposium, July 2012 [AR 22%] (Best Student Paper Award).

Grant Awards

  • Title: IRES: U.S.-Czech Network Centric Intelligent System: Drexel and Czech Technical University
  • PI: William Regli. Co-Is: Rachel Greenstadt. Amount: $149,814 (Share: $50% 74,907, Sponsor $149,814). Duration: 2009-2012
  • RG-2010 Sponsor: DARPA - Computer Science Study Group. Title: Investigating the Limitations and Potential of Automated Linguistic Analysis. PI: Rachel Greenstadt. Co-Is: None. Amount: $99,926 (Share: $100% 99,926, Sponsor $99,926). Duration: 2010-2011
  • RG-2010 Sponsor: NSF - Human Centered Computing Program (IIS-HCC). Title: Investigating Diversity in Online Community Filtering. PI: Rachel Greenstadt. Co-Is: Jennifer Rode. Amount: $95,822 (Share: $50% 47,911, Sponsor $95,822). Duration: 2010-2011
  • RG-2010 Sponsor: NSF - Electrical, Communications and Cyber Systems (ECCS). Title: A Framework for Wireless Network Security Based on Recon_gurable Antennas. PI: Kapil R. Dandekar. Co-Is: Rachel Greenstadt, John Walsh. Amount: $359,506 (Share: $33% 123,168, Sponsor $359,506). Duration: 2010-2013
  • RG-2011 Sponsor: DARPA - Computer Science Study Group. Title: CSSG Phase II: Adversarial Text Analysis (in negotiation). PI: Rachel Greenstadt. Co-Is: None. Amount: $393,399 (Share: $100% 393,399,. Sponsor $393,399). Duration: 2011-2013

Awards & Recognition

  • 2003-2006 U.S. Department of Homeland Security Fellow
  • 1997-2001 Robert C. Byrd Scholar