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Privacy, Security and Automation Lab
Welcome to PSAL, Drexel University's Privacy, Security, and Automation Laboratory. We research topics at the intersection between artificial intelligence, privacy and security, and human-computer interaction.
Check out the navigation sidebar for some basic information about who we are and what we are working on.
PI : Rachel Greenstadt (greenie at cs dot drexel dot edu)
Authorship Recognition Study - Participants Needed
This should take between 30 to 50 minutes of your time. The goals of this research are to discover how well current methods of authorship recognition perform when faced with with human adversaries who are deliberately trying to circumvent them, and to develop that can be used to study both future methods of authorship recognition and methods of circumventing them. A corpus of the results will be released to the public to help all researchers. Thanks for your help.
- PSAL and the Drexel Computer Science Department are hosting a Random Hacks of Kindness event on June 4th and 5th, 2011 (plus a reception on June 3rd). You can find more details and register at the RHoK Philadelphia registration page. It's free! Also, check out this article on Technically Philly about the event.
- Michael Brennan gave a talk in April at Indiana University's Center for Applied Cyber Security entitled Adversarial Stylometry: Attacking Authorship Recognition to Preserve Privacy and Anonymity.
- We have released our first adversarial stylometry corpus. It contains 12 of the 15 authors who made up the corpus used in "Practical Attacks Against Authorship Recognition Techniques." If you use this corpus in your research, please cite:
- Michael Brennan and Rachel Greenstadt. Practical Attacks Against Authorship Recognition Techniques in Proceedings of the Twenty-First Conference on Innovative Applications of Artificial Intelligence (IAAI), Pasadena, California, July 2009.
- Michael Brennan, Stacey Wrazien, and Rachel Greenstadt have a paper at WikiAI (at AAAI) on Learning to Extract Quality Discourse in Online Communities Full feature tables
- Andrew Feit, Lenrik Toval, Raffi Hovagimian, and Rachel Greenstadt have a paper at the AAAI 2010 Workshop on Bridging The Gap Between Task And Motion Planning (BTAMP) on A Travel-Time Optimizing Edge Weighting Scheme for Dynamic Re-planning
- Rachel Greenstadt will be participating in the 2010 Workshop on Security and Human Behavior (speaking on community filtering in online communities) June 28-29.
- Rachel Greenstadt will be speaking at Future Challenges of Network Security (FNCS) in Prague on June 23 on Mixed Initiative Security Agents.
- Rachel Greenstadt and Michael Brennan have a poster at AAMAS on the Thursday, May 13 session (B-39). Come ask us questions about "Using Machine Learning to Augment Collaborative Filtering of Community Discussions"
- Rachel Greenstadt is giving a seminar talk on Privacy & Stylometry: Exploring the Limitations and Potential of Automated Authorship Recognition at the University of Waterloo at 13:30 pm on May 7.
- Michael Brennan passed his candidacy exam on "Current Trends and New Directions in Stylometry." He is now PSAL's first Ph.D. candidate.
- Rachel Greenstadt will chair the 3rd Workshop on Artificial Intelligence and Security (AISec) at the 17th ACM Computer and Communications Security Conference (CCS 2010) taking place October 4-8 in Chicago.
- Rachel Greenstadt is offering a new graduate level course on security. CS 645 will be offered Wednesday evenings and online.
- Michael Brennan spoke on Privacy and Stylometry: Practical Attacks on Authorship Recognition Techniques at the 26th Chaos Communication Congress in Berlin. slides mp4
- We presented a paper on Mixed Initiative Security Agents at the 2nd Workshop on Artificial Intelligence (AISec) at ACM CCS on November 9, 2009.
- Sadia Afroz was selected to present her anti-phishing research in the ACM Student Research Competition at the Grace Hopper conference. tech report.
- Paul Snyder, Rachel Greenstadt, and Giuseppe Valetto presented Myconet: A Fungi-inspired Model for Superpeer-based Peer-to-Peer Overlay Topologies at Self-Adaptive and Self-Organizing Systems (SASO 2009).
- Michael Brennan gave presentations on authorship recognition and privacy at HotPETs and Hacking at Random.
- Michael Brennan and Rachel Greenstadt's IAAI paper on foiling authorship recognition techniques [pdf] was featured in the New Scientist.