Research Projects
A brief overview of ongoing and past research projects.
IT and Security Risk Management
This recently-started research project aims to support DTAG in the area of IT and security risk management. My role in this project is to develop quantitative models and decision-making frameworks based on system, game, and optimization theories in collaboration with colleagues from Stanford University.
The Team
- T-Labs: Tansu Alpcan, Christine Roesner, K-F. Thier.
- Stanford University: Prof. Nick Bambos, Jeff Mounzer, Michael Bloem, Ann Miura-Ko.
- Dai-Lab: Stephan Schmidt, Ahmet Camtepe, Prof. Sahin Albayrak
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SAGA: Spectrum Allocation Games
The SAGA project aims to use mechanism design, game, communication, and information theories in order to study emerging wireless spectrum allocation problems from the perspective of users, operators, and regulators. Recent developments such as relaxation of wireless spectrum usage and emergence of cognitive radio pose new research challanges. SAGA investigates these issues analytically using rigorous mathematical models and tools.
The Team
- T-Labs: Tansu Alpcan.
- Tech. Univ. Berlin: Prof. Holger Boche, Siddarth Naik.
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AugEn: Augmented Environments
The AugEn project brings the kind of rich information environments found on the Internet to the physical world by combining wireless adaptive services with wireless sensor networks. Each object and user is associated with a unique sensor that provides proximity information to a web server, which in turn provides adaptive wireless services over a WiFi network.
The Team
- T-Labs: Tansu Alpcan (project manager)
- Tech. Univ. Berlin: Xing Liu
- Univ. of Bonn: Prof. Christian Bauckhage.
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SIS: Secure and Intelligent Services
In this research project we investigate, on the one hand, the password-based authentication problems through biometric authentication, especially using haptics-based systems. On the other hand, we study improvements to decentralized identity management, specifically OpenID.
OpenID Test Server
An experimental OpenID testserver is online!
Biometric Authentication
A preliminary demo of our signature-based biometric authentication scheme is accessible here!
Open Source
A portion of the SIS project called T-OpenID is now available under the GPL open source license and hosted here at Sourceforge.
T-OpenID is an identity management solution consisting of an OpenID server based on Turbogears Python web framework and a Firefox browser add-on. The server extends standard OpenID functionality through secure communication between the server and the browser plug-in without resorting to SSL. It is primarily intended as a research testbed and in the future as a privacy-preserving solution for individuals and small businesses.
The project website contains further information.
The Team
- Project Manager: Tansu Alpcan
- T-Labs researchers: Dr. Christian Bauckhage, Dr. Olivier Dousse, and Dr. Anja Naumann.
- Graduate Student: Daniel Bicher (TUB).
- Dai-Lab: Dr. Ahmet Camtepe, Prof. Sahin Albayrak
- Bogazici University: Prof. Kivanc Mihcak, Sinan Kesici
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MoSST: Mobile Security and Services Testbed
As smartphones are becoming ubiquitous and powerful mobile computing platforms, mobile security and services will continue to play an important role. Today's high-level languages, platforms, and on-demand computing facilities (e.g. Python, Turbogears) provide substantial rapid prototyping capabilities. We build a mobile testbed for research purposes focusing on the areas of mobile security (e.g. intrusion detection) and services (e.g. social search, information retrieval, and mobile vision). The testbed will be used to collect data, evaluate algorithms, and create proof-of-concept research prototypes.
The Team
- T-Labs: Tansu Alpcan and Dr. Christian Bauckhage.
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SPREE: Information Exchange Network
The SPREE system realizes an intelligent, real-time social search engine for enterprise Intranets or online communities that delegates user queries to knowledgable specialists or fellow users. According to its very nature, the system requires a sound integration of concepts that draw from distinct areas of computer science. In addition to our solutions to problems in interface design and usability, we also investigate basic information retrieval and machine learning problems. Results obtained from extensive experiments demonstrate the efficiency and robustness of our system and convey its potential for next generation web services.
The SPREE Prototype
SPREE contains not only an engine which bridges users/experts with each other for exchanging information on a variety of topics but also an innovative user interface based on latest AJAX technologies. The SPREE prototype is currently running and you can try it yourself free of charge at www.askspree.de. We provide extensive help for our users which also contains information on how to reach SPREE through means other than the browser, e.g. RSS, iGoogle, or Google Desktop widgets.
Open Source
SPREE project results are now available under the AGPL open source license!
A version of the Spree social search platform is available as a Facebook under the name Ask Spree.
The Team
- Project Manager: Tansu Alpcan
- T-Labs researchers: Dr. Christian Bauckhage, Dr. Florian Metze, and Dr. Sachin Agarwal (only in the first phase).
- Dai-Lab team: Robert Wetzker, Winfried Umbrath, and Milena Ilic.
- Students: Mitra Zare-toori, Kathrin Dobbrott, Tunc Kilicarslan, Bastian Prillwitz, Christian Guenther, and Gabriel Zapgho.
- Head of Dai-Lab: Prof. Sahin Albayrak
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Distributed Control of Trustworthy Networked Systems
This project, which was supported by Boeing Inc., has investigated development of trustworthy networked systems using a game theoretic approach.
The Team
- Tansu Alpcan, Prof. Tamer Basar, Michael Bloem, and Kien Nguyen.
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