Jun.-Prof. Dr. Kalman Graffi
Technische Hochschule Bingen
Fachbereich 2: Technik, Informatik und Wirtschaft
Institut für Informatik
Berlinerstr. 109, 55411 Bingen am Rhein
Büro: 1.234
Telefon: (+49) 6721 409 705
Email: k.graffi[at]th-bingen.de
Web: graffi.de
Universität Paderborn
Fakultät für Elektrotechnik, Informatik und Mathematik
Institut für Informatik
Fürstenallee 11, 33102 Paderborn
Büro: F2.411
Telefon: (+49) 5251 - 60-67 30
Fax: (+49) 5251 - 60-66 97
Email: graffi[at]mail.upb.de
Lehrveranstaltungen
SS 2013:
Projekt-Gruppe: A Peer-to-Peer Framework for Social Networks
SS 2012:
Projekt-Gruppe: A Peer-to-Peer Framework for Social Networks
Seminar: Security in Peer-to-Peer Systems Seminar
WS 2011/2012
Vorlesung: Peer-to-Peer Networks and Applications
Seminar: Peer-to-Peer Systems Seminar
SS 2011 - WS 2011/2012
Projekt-Gruppe: A Distributed Framework for Social Networks
Bei Interesse an den Lehrveranstaltungen, meiner Forschung oder an meinen Publikationen, zögern Sie bitte nicht mich anzuschreiben.
Forschungsgebiet selbst-organisierender Netzwerke
1. Monitoring und Managment von Peer-to-Peer-Systemen
Monitoring- und Informationsaggregations-Ansätze in Peer-to-Peer-Systemen
Qualitäts-Management und -Steuerung in Peer-to-Peer Systemen
Modellierung und Standardisierung von funktionalen Schichten in Peer-to-Peer-Systemen
Allgemeinene effizienzzentrierten Mechanismen und Ansätze in Peer-to-Peer-Systemen
Scheduling und Task-Priorisierung in selbst-verwalteten, autonomen, verteilten Systemen
2. Peer-to-Peer-basierte, sichere und verteilte soziale Netzwerke
Verlässliche und effiziente verteilte Datenhaltung
Ingenieursmäßige Methoden zur Erstellung von qualitätsgarantierten Peer-to-Peer-Plattformen
Sicherheits-Risiken und Lösungen in Peer-to-Peer-basierter verteilter Datenhaltung
Privatheit und Löschbarkeit in verteilten Systemen
3. Sicherheit in Wireless Mesh Networks
Sicheres Routing in IEEE 802.16 - basierten Mesh Networks
Bösartige Zusammenarbeit im Routing sowie deren Entdeckung und Vermeidung
Publikationen
Dissertation
K.Graffi „Monitoring and Management of Peer-to-Peer Systems“, Defense on 20th July 2010
Link auf Amazon: Link zum Buch, vertrieben über den Dr.-Hut-Verlag: Link zu der Dissertation
Artikel
C. Scheideler, K. Graffi:
“Programming for Distributed Computing: From Physical to Logical Networks”,
Springer Computer Science Computer Science, The Hardware, Software and Heart of It 2011, Part 2, 2011.
P.Mogre, K.Graffi, M. Hollick, R.Steinmetz:
“A Security Framework for Wireless Mesh Networks“,
In Wiley InterScience Wireless Communications and Mobile Computing (WCMC), Special Issue on "Architectures and Protocols for Wireless Mesh, Ad Hoc, and Sensor Networks", 2010.
K. Graffi, A. Kovacevic, P. Mukherjee, M. Benz, C. Leng, D. Bradler, J. Schroeder-Bernhardi, N. Liebau:
“Peer-to-Peer Forschung - Überblick und Herausforderungen“.
In: it - Information Technology (Methods and Applications of Informatics and Information Technology), vol. 46, no. 5, July 2007.
Konferenz und Workshop Paper (begutachtet)
2011
D. Hartung, K. Wold, K. Graffi, S. Petrovic
"Towards a Biometric Random Number Generator – A General Approach For True Random Extraction From Biometric Samples"
In: Proc. of the International Conference of the Special Interest Group on Biometrics Bookmark and Share. (BIOSIG 2011), September 2011
K. Graffi
"PeerfactSim.KOM: A P2P System Simulator – Experiences and Lessons Learned".
In: Proc. of the IEEE International Conference on Peer-to-Peer Computing, (IEEE P2P'11), August 2011
P. Mukherjee, K. Saller, A. Kovacevic, K. Graffi, A.Schürr, R. Steinmetz
"Tracability Link Evolution with Version Control".
In: Proc. of Evolutionäre Software- und Systementwicklung - Methoden und Erfahrungen (ESoSyM-2011), Workshop collocated with Internation Conference on Software Engineering 2011, February 2011
K. Graffi, C. Groß, D. Stingl, D. Hartung, A. Kovacevic, R. Steinmetz„LifeSocial.KOM: A Secure and P2P-based Solution for Online Social Networks“.In: Proc. of the IEEE Consumer Communications and Networking Conference, (IEEE CCNC'11), Januar 2011
2010
K. Graffi, C. Groß, D. Stingl, H.Nguyen, A. Kovacevic, R. Steinmetz
„Towards a P2P Cloud: Reliable Resource Reservations in Unreliable P2P Systems“.
In: Proc. of the 16th IEEE International Conference on Parallel and Distributed Systems, (IEEE ICPADS'10), December 2010
K. Graffi, C.Groß, P. Mukherjee, A. Kovacevic, R. Steinmetz
„LifeSocial.KOM: A P2P-based Platform for Secure Online Social Networks“.
In: Proc. of the 10th IEEE International Conference on Peer-to-Peer Computing, (IEEE P2P'10), August 2010.
2009
K. Graffi, D.Stingl, J. Rueckert, A. Kovacevic, R. Steinmetz
„Monitoring and Management of Structured P2P Systems".
In: Proc. of the 9th IEEE International Conference on Peer-to-Peer Computing, (IEEE P2P'09), September 2009.
K. Graffi, P. Mukherjee, B.Menges, D. Hartung, A. Kovacevic, R. Steinmetz
„Practical Security for P2P-based Social Networks“.
In: Proc. of the 9th IEEE International Conference on Local Computing Networks, (IEEE LCN'09), August 2009.
O. Abboud, A. Kovacevic, K. Graffi, K. Pussep, R. Steinmetz
“Underlay Awareness in P2P Systems: Techniques and Challenges“.
In: Proc. of IEEE International Symposium on Parallel and Distributed Processing (IPDPS '09, HotP2P '09), May 2009.
2008
K. Graffi, A. Kovacevic, S. Xiao, R. Steinmetz
„SkyEye.KOM: An Information Management Over-Overlay for Getting the Oracle View on Structured P2P Systems“.
In: Proc. of the 14th IEEE International Conference on Parallel and Distributed Systems (IEEE ICPADS'08), December 2008.
K. Graffi, S. Podrajanski, P. Mukherjee, A. Kovacevic, R. Steinmetz
„A Distributed Platform for Multimedia Communities“.
In: Proc. of the IEEE International Symposium on Multimedia (IEEE ISM '08), December 2008.
K.Graffi, A. Kovacevic, N.Liebau, R.Steinmetz,
“From Cells to Organisms: Long-Term Guarantees on Service Provisioning in Peer-to-Peer Networks“.
In: 8th ACM SIGAPP Int. Conf. on New Technologies of Distributed Systems (ACM NOTERE '08), June 2008.
K.Graffi, S. Kaune, K.Pussep, A.Kovacevic, R.Steinmetz
“Load Balancing for Multimedia Streaming in Heterogeneous Peer-to-Peer Systems“.
In: Proc. of the 8th ACM SIGMM Int. Workshop on Network and Operating Systems Support for Digital Audio and Video (ACM NOSSDAV '08), May 2008.
Aleksandra Kovacevic, Kalman Graffi, Sebastian Kaune, Christof Leng, Ralf Steinmetz
"Towards Benchmarking of Structured Peer-to-Peer Overlays for Network Virtual Environments".
In: Proc. of the 14th International Conference on Parallel and Distributed Systems (ICPADS 2008), December 2008.
2007
K.Graffi, A. Kovacevic, K. Wulffert, R.Steinmetz
“ECHoP2P: Emergency Call Handling over Peer-to-Peer Overlays“.
In: Proc. of the Int. Workshop on Peer-to-Peer – Network Virtual Environments (P2P-NVE '07), December 2007.
K. Graffi, P. Mogre, M. Hollick, R.Steinmetz
“Detection of Colluding Misbehaving Nodes in Mobile Ad Hoc and Mesh Networks".
In: IEEE Global Communications Conference (GLOBECOM '07), November 2007.
K. Graffi, K. Pussep, S. Kaune, A. Kovacevic, N. Liebau, R. Steinmetz
“Overlay Bandwidth Management: Scheduling and Active Queue Management of Overlay Flows“.
In: Proc. of the IEEE Local Computer Networks (IEEE LCN '07), October 2007.
P. Mogre, K. Graffi, M. Hollick, R. Steinmetz
“AntSec, WatchAnt and AntRep: Innovative Security Mechanisms for Wireless Mesh Networks“.
In: Proc. of IEEE Local Computer Networks (IEEE LCN '07), October 2007.
N. Liebau, K. Pussep, K. Graffi, S. Kaune, E. Jahn, A. Beyer, R. Steinmetz
“The Impact Of The P2P Paradigm“.
In: Proc. of Americas Conference on Information Systems (AMCIS '07), August 2007.
K. Graffi, K. Pussep, N. Liebau, R. Steinmetz
“Taxonomy of Active Queue Management Strategies in Context of Peer-to-Peer Scenarios“.
In: Technical Report, Technische Universität Darmstadt, KOM-TR-2007-01, January 2007.
K. Graffi, N. Liebau, R. Steinmetz
“Taxonomy of Message Scheduling Strategies in Context of Peer-to-Peer Scenarios“.
In: Technical Report, Technische Universität Darmstadt, KOM-TR-2007-02, January 2007.