Dimitrios Koukopoulos

Personal Information

Research Interests

• Algorithmic Aspects of Computer Networks
• Adversarial Queueing Theory
• Network Stability
• Parallel Computing
• Distributed Computing
• Telecommunications and Signal Processing
• Watermarking
• Client-Server Systems
• E-commerce Services

Courses

• Probabilities

Invited Papers

• D.Koukopoulos, S.Nikoletseas and P.Spirakis: Stability Issues in Heterogeneous and FIFO Networks under the Adversarial Queueing Model. Invited Paper in the Proceedings of the 8th International Conference on High Performance Computing (HiPC'2001), Hyderabad, India, December 17-20, 2001. Lecture Notes in Computer Science, Volume 2228, pages 3-14, (Springer-Verlag, 2001).
  
  
• D.Koukopoulos and Y. Stamatiou: A Compressed-Domain Watermarking Scheme for Mp3 with Cryptographically Secure Keys. Invited Paper in the Proceedings of the International Conference on Advances in Infrastructure for e-Business, e-Education, e-Science and e-Medicine on the Internet (SSGRR'2002), L’ Aquila, Italy, July , 2002.
  

Conference publications

• D. Koukopoulos, M. Mavronikolas, S.Nikoletseas and P.Spirakis: The Impact of Network Structure on the Stability of Greedy Protocols. Proceedings of the 5th International Conference on Algorithms and Complexity (CIAC'2003), Rome, Italy, May 28-30, 2003. Lecture Notes in Computer Science, Volume 2653, pages 120-132, (Springer-Verlag, 2003).
  
  
• D. Koukopoulos, M. Mavronicolas and P. Spirakis: Instability of Networks with Quasi-Static Link Capacities. Proceedings of the 10th Colloquium on Structural Information and Communication Complexity (SIROCCO'2003), Umea, Sweden, June 18-20, 2003.
  
  

• D. Koukopoulos, M. Mavronikolas, S. Nikoletseas, and P. Spirakis: Instability of Heterogeneous and FIFO Adversarial Queueing Networks. Proceedings of the 16th International Symposium on DIStributed Computing (DISC'2002), ENSEEIHT, Toulouse, France, October 28-30, 2002. Lecture Notes in Computer Science, Volume 2508, pages 88-102, (Springer-Verlag, 2002).
  
  
• S. Armeni, D. Christodoulakis, D. Koukopoulos and Y. Stamatiou: Ethic Aspects of Security on Information Systems. Proceedings of the IX International Conference “Crimea 2002” “Electronic Resources and the Social Role of Libraries in the Future” (Crimea'2002), Sudak,Crimea, Ukraine, June 2002.
  
  

• J. Diaz, D. Koukopoulos, S. Nikoletseas, M. Serna, P. Spirakis and D. Thilikos: Stability and non-stability of the FIFO protocol. Proceedings of the 13th Annual ACM Symposium on Parallel Algorithms and Architectures (SPAA'2001), Crete, Greece, July 4-6, 2001. pages 48-52 (ACM-Press, 2001).
  
  
• D. Koukopoulos, S. Nikoletseas and P. Spirakis: Stability Behavior of FIFO Protocol in the Adversarial Queueing Model. Proceedings of the 8th Panhellenic Conference on Informatics (PCI'2001), Informatics Department, Nicosia, Cyprus, November 8-10, 2001. Also, in the Post-Proceedings of the 8th Panhellenic Conference in Informatics, Advances in Informatics,, Eds. Y. Manolopoulos, S. Evripidou, A. Kakas, Lecture Notes in Computer Science, Volume 2563, (Springer-Verlag).
  
  
• D. Koukopoulos and Y. Stamatiou: A Compressed-Domain Watermarking Algorithm for Mpeg Layer 3. Proceedings of the 8th Workshop on Multimedia and Security at ACM Multimedia’01 (WMS'2001), Ottawa, Canada, October , 2001. pages 7-10 (ACM-Press, 2001).
  
  
• S. Tzelepi, D. Koukopoulos and G. Pangalos: A Flexible Content and Context-based Access Control Model for Multimedia Medical Image Database Systems. Proceedings of the 8th Workshop on Multimedia and Security at ACM Multimedia’01 (WMS'2001), Ottawa, Canada, October , 2001. pages 52-55 (ACM-Press, 2001).
  
  

• C. Bouganis, D. Koukopoulos and D. Kalles: A Real Time Auction System over the WWW. Proceedings of the International Conference on Communication Networks and Distributed Systems Modeling and Simulation, (CNDS'1999) San Francisco, USA, January 17-20, 1999.