Jun.-Prof. Dr.-Ing. Kálmán György Graffi

Fachgebiet: Informatik

Kalman_Graffi.jpg

Kontakt

Institut für Informatik
Heinrich-Heine-Universität Düsseldorf
40204 Düsseldorf


http://tsn.hhu.de/

Visitenkarte

Biographie

  • 08/2015 Positive Evaluation der Juniorprofessur (habilitationsäquivalent)
  • Seit 08/2012 Juniorprofessor (W1) in der Arbeitsgruppe für Technik sozialer Netzwerke“, Institut für Informatik, Heinrich-Heine-Universität Düsseldorf.
  • 01/2011 - 07/2012 Senior Researcher (Postdoc) in der Fachgruppe für die "Theorie verteilter Systeme", Prof. Dr. Christian Scheideler, Institut für Informatik, Universität Paderborn.
  • 07/2010 Promotion mit Auszeichnung zum Doktor-Ingenieur (Dr.-Ing.) zum Thema "Monitoring and Management of Peer-to-Peer Systems", Institut für Elektrotechnik und Informationstechnik, Technische Universität Darmstadt.
  • 06/2006 - 01/2011 Wissenschaftlicher Angestellter am Fachgebiet "Multimedia Kommunikation", Institut für Elektrotechnik und Informationstechnik, Technische Universität Darmstadt.
  • 05/2006 “Zertifikat IT-Sicherheit" des Competence Center for Applied Security (CAST) und der Technischen Universität Darmstadt. Nachweis der Exzellenz in der IT-Sicherheit.
  • 04/2004 - 05/2006 Studium des Diplomstudienganges “Mathematik mit Schwerpunkt Informatik", Technische Universität Darmstadt, Abschluss: Diplom-Mathematiker (Dipl. Math.).
  • 10/2002 - 05/2006 Studium des Diplomstudienganges “Informatik", TU Darmstadt Technische Universität Darmstadt, Abschluss: Abschluss: Diplom-Informatiker (Dipl.-Inform.).

Preise

Auszeichnungen

  • 2016 Wahl zum Co-Präsidenten der Arabisch-Deutschen Jungen Akademie der Wissenschaften (AGYA).
  • 2016 Aufnahme in die Junge Akademie der Wissenschaften und der Literatur | Mainz für 4 Jahre.
  • 2016 Aufnahme in das Junge Forum: Technikwissenschaften (JF:TEC) für 4 Jahre.
  • 2015 Ernennung zum “GI Juniorfellow" für 5 Jahre durch die Gesellschaft für Informatik (GI).
  • 2014 Ausgezeichnet als “Nachwuchswissenschaftler des Jahres 2014" durch academics.de und den Deutschen Hochschulverband.


Gremien und Juryzugehörigkeit

  • 2016 Gründungsmitglied des “Düsseldorfer Instituts für Internet und Demokratie (DIID)"
  • Seit 2016 Erasmusbeauftragter des Instituts für Informatik an der Universität Düsseldorf
  • Seit 2015 Mitverantwortlich für die Informationsdissemination der Fachgruppe Kommunikation und Verteilte Systeme (GI-KUVS) der Gesellschaft für Informatik
  • Seit 2014 Mitglied der Arbeitsgruppe “IT-Sicherheit" der Heinrich-Heine-Universität in Düsseldorf
    (5 Vertreter)
  • Seit 2013 Mitglied des Fakultätsrat der Mathematisch-Naturwissenschaftlichen Fakultät der Heinrich-Heine-Universität in Düsseldorf (29 Vertreter)
  • Seit 2012 Mitglied der Wissenschaftliche Einrichtung der Informatik der
    Heinrich-Heine-Universität in Düsseldorf (20 Vertreter)
  • 2008 - 2009 Mitglied des Universitätssenats der Technischen Universität Darmstadt als Vertreter der Wissenschaftlichen Angestellten (3 Vertreter)
  • 2007 - 2008 Mitglied der Universitätsversammlung der Technischen Universität als Vertreter der Wissenschaftlichen Angestellten (10 Vertreter)
  • 2007 Gründer der Gruppe “TUD Aktiv - Aktiv in Forschung und Lehre" der Wissenschaftlichen Angestellten an der Technischen Universität Darmstadt




Publikationen

Begutachtete Zeitschriftenbeiträge

  • Norbert Goebel, Tobias Krauthoff, Kalman Graffi and Martin Mauve. Moving Measurements: Measuring Network Characteristics of Mobile Cellular Networks on the Move. Elsevier Computer Communications, in press, 2016.
  • Barbara Guidi, Tobias Amft, Andrea De Salve, Kalman Graffi, and Laura Ricci. DiDuSoNet: A P2P Architecture for Distributed Dunbar-based Social Networks. Springer Peer-to-Peer Networking and Applications, vol 9(6), pages 1177–1194, 2016.
  • Matthias Feldotto and Kalman Graffi. Systematic Evaluation of Peer-to-Peer Systems Using PeerfactSim.KOM. Wiley Concurrency and Computation: Practice and Experience, vol. 28(5), ISSN: 1532–0634, pages 1655–1677, 2016.
  • Kalman Graffi. Decentralized Communication against Surveillance and Privacy Violation. it – Information Technology 2016, vol 58(2), pages 112–116, 2016.
  • Parag S. Mogre, Kalman Graffi, Matthias Hollick, and Ralf Steinmetz. A Security Framework for Wireless Mesh Networks. Wiley Wireless Communications and Mobile Computing, vol. 11(3), pages 371–391, 2011.
  • Kalman Graffi, Aleksandra Kovacevic, Patrick Mukherjee, Michael Benz, Christof Leng, Dirk Bradler, Julian Schröder-Bernhardi, and Nicolas Liebau. Peer-to-Peer-Forschung - Überblick und Herausforderungen. it - Information Technology (Methods and Applications of Informatics and Information Technology), 46(3), pages 272–279, 2007.

Patente

  • Parag S. Mogre, Kalman Graffi, Matthias Hollick, and Andreas Ziller. Method for Misbehaviour Detection in Secure Wireless Mesh Networks, Patent Numbers: CN101796861B, EP2034782A1, EP2198641A1, EP2198641B1, US20100180113, WO2009030693A1, 2010.


Begutachtete Konferenz- oder Workshopbeiträge

  • Tobias Amft and Kalman Graffi. Moving Peers in Distributed, Location-based Peer-to-Peer Overlays. Accepted for publication at IEEE ICNC ’17: Proceedings of the International Conference on Computing, Networking and Communications, pages 1–8, 2017.
  • Salem Sati, Andre Ippisch and Kalman Graffi. Dynamic Replication Control Strategy For Opportunistic Networks. Accepted for publication at IEEE ICNC ’17: Proceedings of the International Conference on Computing, Networking and Communications, pages 1–7, 2017.
  • Andreas Disterhöft and Kalman Graffi. Convex Hull Watchdog: Mitigation of Malicious Nodes in Tree-based P2P Monitoring Systems. Accepted for publication at IEEE LCN ’16: Proceedings of the International Conference on Local Computer Networks, pages 1–8, 2016.
  • Salem Sati, Christopher Probst and Kalman Graffi. Dynamic Dropping Policy to Improve PRoPHET’s Routing Performance Accepted for publication at IEEE MSN ’16: Proceedings of the International Conference on Mobile Ad-Hoc and Sensor Networks, pages 1–7, 2016.
  • Raed Al-Aaridhi, Ahmet Yueksektepe, Tobias Amft and Kalman Graffi. Distributed Data Structures Improvement for Collective Retrieval Time. Accepted for publication at IEEE WPMC ’16: Proceedings of the International Symposium on Wireless Personal Multimedia Communications, pages 1–6, 2016.
  • Andrea De Salve, Laura Ricci, Paolo Mori, Raed Al-Aaridhi, and Kalman Graffi Privacy-preserving Data Allocation in Decentralized Online Social Networks. In DAIS ’16: Proceedings of the International Conference on Distributed Applications and Interoperable Systems, pages 1–14, 2016.
  • Norbert Goebel, Raphael Bialon, Martin Mauve and Kalman Graffi Coupled Simulation of Mobile Cellular Networks, Road Traffic and V2X applications using Traces. In IEEE ICC ’16: Proceedings of the International Conference on Communications, pages 1–7, 2016.
  • Ahmad Cheraghi, Tobias Amft, Salem Sati, Philipp Hagemeister and Kalman Graffi. The State of Simulation Tools for P2P Networks on Mobile Ad-Hoc and Opportunistic Networks. In IEEE ICCCN ’16: Proceedings of the International Conference on Computer Communications and Networks, pages 1–7, 2016.
  • Salem Sati, Christopher Probst and Kalman Graffi. Analysis of Buffer Management Policies for Opportunistic Networks. In IEEE ICCCN ’16: Proceedings of the International Conference on Computer Communications and Networks, pages 1–8, 2016.
  • Andreas Disterhöft and Kalman Graffi. Protected Chords in the Web: Secure P2P Framework for Decentralized Online Social Networks. In IEEE P2P ’15: Proceedings of the IEEE International Conference on Peer-to-Peer Computing, pages 1–5, 2015.
  • Tobias Amft, Barbara Guidi, Kalman Graffi, and Laura Ricci. FRoDO: Friendly Routing over Dunbar-based Overlays. In IEEE LCN ’15: Proceedings of the IEEE International Conference on Local Computing Networks, pages 1–9, 2015.
  • Christopher Probst, Andreas Disterhöft, and Kalman Graffi. Chunked-Swarm: Divide and Conquer for Real-time Bounds in Video Streaming. In IEEE NEW2AN ’15: Proceedings of the IEEE International Conference on Next Generation Wired/Wireless Networking, pages 1–12, 2015.
  • Salem Sati and Kalman Graffi. Adapting the Beacon Interval for Opportunistic Network Communications. In ICACCI ’15: Proceedings of the International Conference on Advances in Computing, Communications and Informatics, pages 1–7, 2015.
  • Raed Ali and Kalman Graffi. SandMash: An Approach for Mashups Techniques on Smartphones. In MobiWis ’15: Proceedings of the International Conference on Mobile Web and Intelligent Information Systems, pages 1–16, 2015.
  • Arman Sheikholeslami and Kalman Graffi. A Systematic Quality Analysis of Virtual Desktop Infrastructure Technologies. In LSDVE ’14: Proceedings of the International Workshop on Large Scale Distributed Virtual Environments on Clouds and P2P, in conjunction with Euro-Par 2014, pages 1–12, 2015.
  • Andre Ippisch and Kalman Graffi. An Android Framework for Opportunistic Wireless Mesh Networking. In NetSys’15: Proceedings of the Conference on Networked Systems, pages 1–2, 2015.
  • Andreas Disterhöft and Kalman Graffi. A Browser-based Secure P2P Framework for Decentralized Online Social Networks. In NetSys’15: Proceedings of the Conference on Networked Systems, pages 1–2, 2015.
  • Norbert Goebel, Markus Koegel, Martin Mauve, and Kalman Graffi. Trace-based Simulation of C2X-Communication using Cellular Networks. In IEEE/IFIP WONS’14: Proceedings of the IEEE/IFIP Annual Conference on Wireless On-demand Networks Systems and Services, pages 1–8, 2014.
  • Josef Jiru, Lars Bremer, and Kalman Graffi. Data Aggregation in VANETs - A Generalized Framework for Channel Load Adaptive Schemes. In IEEE LCN ’14: Proceedings of the IEEE International Conference on Local Computing Networks, pages 1–4, 2014.
  • Felix Eichert, Markus Monhof, and Kalman Graffi. The Impact of Routing Attacks on Pastry-based P2P Online Social Networks. In LSDVE ’14: Proceedings of the International Workshop on Large Scale Distributed Virtual Environments on Clouds and P2P, in conjunction with Euro-Par 2014, pages 1–12, 2014.
  • Matthias Feldotto, Christian Scheideler, and Kalman Graffi. HSkip+: A Self-Stabilizing Overlay Network for Nodes with Heterogeneous Bandwidths. In IEEE P2P ’14: Proceedings of the International Conference on Peer-to-Peer Computing, pages 1–10, 2014.
  • Jens Janiuk, Alexander Mäcker, and Kalman Graffi. Secure Distributed Data Structures for Peer-to-Peer-based Social Networks. In IEEE CTS ’14: Proceedings of the IEEE International Conference on Collaboration Technologies and Systems, pages 1–10, 2014.
  • Timo Klerx and Kalman Graffi. Bootstrapping Skynet: Calibration and Autonomic Self-Control of Structured Peer-to-Peer Networks. In IEEE P2P ’13: Proceedings of the International Conference on Peer-to-Peer Computing, pages 1–5, 2013.
  • Vitaliy Rapp and Kalman Graffi. Continuous Gossip-based Aggregation through Dynamic Information Aging. In IEEE ICCCN ’13: Proceedings of the International Conference on Computer Communications and Networks, pages 1–7, 2013.
  • Matthias Feldotto and Kalman Graffi. Comparative Evaluation of Peer-to-Peer Systems Using PeerfactSim.KOM. In IEEE HPCS’13: Proceedings of the International Conference on High Performance Computing and Simulation, pages 1–8, 2013.
  • Lars Bremer and Kalman Graffi. Symbiotic Coupling of P2P and Cloud Systems: The Wikipedia Case. In IEEE ICC ’13: Proceedings of the International Conference on Communications, pages 1–6, 2013.
  • Philip Wette and Kalman Graffi. Adding Capacity-Aware Storage Indirection to Homogeneous Distributed Hash Tables. In NetSys ’13: Proceedings of the Conference on Networked Systems, pages 1–8, 2013.
  • Markus Benter, Mohammad Divband, Sebastian Kniesburges, Andreas Koutsopoulos, and Kalman Graffi. Ca-Re-Chord: A Churn Resistant Self-stabilizing Chord Overlay Network. In NetSys ’13: Proceedings of the International Conference on Networked Systems, pages 1–8, 2013.
  • York Yannikos, Jonathan Schlüßler, Martin Steinebach, Christian Winter, and Kalman Graffi. Hash-based File Content Identification Using Distributed Systems. In IFIP ICDF ’13: Proceedings of the IFIP International Conference on Digital Forensics, pages 1–19, 2013.
  • Kalman Graffi. PeerfactSim.KOM: A P2P System Simulator - Experiences and Lessons Learned. In IEEE P2P ’11: Proceedings of the International Conference on Peer-to-Peer Computing, pages 1–2, 2011.
  • Kalman Graffi, Christian Groß, Dominik Stingl, Daniel Hartung, Aleksandra Kovacevic, and Ralf Steinmetz. LifeSocial.KOM: A Secure and P2P-based Solution for Online Social Networks. In IEEE CCNC ’11: Proceedings of the IEEE Consumer Communications and Networking Conferences, pages 1–5, 2011.
  • Daniel Hartung, Knut Wold, Kalman Graffi, and Slobodan Petrovic. Towards a Biometric Random Number Generator – A General Approach For True Random Extraction From Biometric Samples. In BIOSIG ’11: Proceedings of the International Conference of the Special Interest Group on Biometrics Bookmark and Share, pages 1–8, 2011.
  • Patrick Mukherjee, Karsten Saller, Aleksandra Kovacevic, Kalman Graffi, Andy Schüerr, and Ralf Steinmetz. Tracability Link Evolution with Version Control. In ESoSyM ’11: Proceedings of Evolutionäre Software- und Systementwicklung - Methoden und Erfahrungen , Workshop collocated with Internation Conference on Software Engineering 2011, pages 1–11, 2011.
  • Kalman Graffi, Christian Groß, Dominik Stingl, Hoang Nguyen, Aleksandra Kovacevic, and Ralf Steinmetz. Towards a P2P Cloud: Reliable Resource Reservations in Unreliable P2P Systems. In IEEE ICPADS ’10: Proceedings of the International Conference on Parallel and Distributed Systems, pages 1–10, 2010.
  • Kalman Graffi, Christian Groß, Patrick Mukherjee, Aleksandra Kovacevic, and Ralf Steinmetz. LifeSocial.KOM: A P2P-based Platform for Secure Online Social Networks. In IEEE P2P ’10: Proceedings of the International Conference on Peer-to-Peer Computing, pages 1–2, 2010.
  • Kalman Graffi, Dominik Stingl, Julius Rückert, and Aleksandra Kovacevic. Monitoring and Management of Structured Peer-to-Peer Systems. In IEEE P2P ’09: Proceedings of the International Conference on Peer-to-Peer Computing, pages 1–10, 2009.
  • International Conference on Local Computer Networks, pages 1–4, 2009.
  • Osama Abboud, Aleksandra Kovacevic, Kalman Graffi, Konstantin Pussep, and Ralf Steinmetz. Underlay Awareness in P2P Systems: Techniques and Challenges. In IEEE IPDPS ’09: Proceedings of the International Symposium on Parallel and Distributed Processing, pages 1–8, 2009.
  • Kalman Graffi, Aleksandra Kovacevic, Song Xiao, and Ralf Steinmetz. SkyEye.KOM: An Information Management Over-Overlay for Getting the Oracle View on Structured P2P Systems. In IEEE ICPADS ’08: Proceedings of the International Conference on Parallel and Distributed Systems, pages 1–8, 2008.
  • Kalman Graffi, Sergey Podrajanski, Patrick Mukherjee, Aleksandra Kovacevic, and Ralf Steinmetz. A Distributed Platform for Multimedia Communities. In IEEE ISM ’08: Proceedings of the International Symposium on Multimedia, pages 1–6, 2008.
  • Kalman Graffi, Sebastian Kaune, Konstantin Pussep, Aleksandra Kovacevic, and Ralf Steinmetz. Load Balancing for Multimedia Streaming in Heterogeneous Peer-to-Peer Systems. In ACM NOSSDAV ’08: Proceedings of the International Workshop on Network and Operating Systems Support for Digital Audio and Video, pages 1–6, 2008.
  • Kalman Graffi, Aleksandra Kovacevic, Nicolas Liebau, and Ralf Steinmetz. From Cells to Organisms: Long-Term Guarantees on Service Provisioning in Peer-to-Peer Networks. In ACM SIGAPP NOTERE ’08: Proceedings of the International Conference on New Technologies of Distributed Systems, pages 1–6, 2008.
  • Aleksandra Kovacevic, Kalman Graffi, Sebastian Kaune, Christof Leng, and Ralf Steinmetz. Towards Benchmarking of Structured Peer-to-Peer Overlays for Network Virtual Environments. In IEEE ICPADS ’08: Proceedings of the International Conference on Parallel and Distributed Systems, pages 1–6, 2008.
  • Kalman Graffi, Parag Mogre, Matthias Hollick, and Ralf Steinmetz. Detection of Colluding Misbehaving Nodes in Mobile Ad Hoc and Mesh Networks. In IEEE GLOBECOM 07: Proceedings of the Global Communications Conference, Exhibition & Industry Forum, pages 1–5, 2007.
  • Kalman Graffi, Konstantin Pussep, Sebastian Kaune, Aleksandra Kovacevic, Nicolas Liebau, and Ralf Steinmetz. Overlay Bandwidth Management: Scheduling and Active Queue Management of Overlay Flows. In IEEE LCN ’07: Proceedings of the International Conference on Local Computer Networks, pages 1–9, 2007.
  • Kalman Graffi, Aleksandra Kovacevic, Kyra Wulffert, and Ralf Steinmetz. ECHoP2P: Emergency Call Handling over Peer-to-Peer Overlays. In IEEE P2PNVE’07: Proceedings of the International Workshop on Peer-to-Peer Network Virtual Environments, pages 1–10, 2007.
  • Nicolas Liebau, Konstantin Pussep, Kalman Graffi, Sebastian Kaune, Eric Jahn, André Beyer, and Ralf Steinmetz. The Impact Of The P2P Paradigm on the New Media Industries. In AMCIS ’07: Proceedings of Americas Conference on Information Systems, pages 1–17, 2007.
  • Parag Mogre, Kalman Graffi, Matthias Hollick, and Ralf Steinmetz. AntSec, WatchAnt and AntRep:Innovative Security Mechanisms for Wireless Mesh Networks. In IEEE LCN ’07: Proceedings of the International Conference on Local Computer Networks, pages 1–9 2007.


Buchkapitel

  • Christian Scheideler and Kalman Graffi. Programming for distributed computing: From physical to logical networks. In Edward K. Blum and Alfred V. Aho, editors, Computer Science, pages 155–168. Springer New York, 2011.


Technische Berichte

  • Kalman Graffi, Konstantin Pussep, Nicolas Liebau, and Ralf Steinmetz. Taxonomy of Active Queue Management Strategies in Context of Peer-to-Peer Scenarios. Technical Report Tr-2007-01, Technische Universität Darmstadt, Germany, 2007.
  • Kalman Graffi, Nicolas Liebau, and Ralf Steinmetz. Taxonomy of Message Scheduling Strategies in Context of Peer-to-Peer Scenarios. Technical Report Tr-2007-02, Multimedia Communications Lab KOM, Technische Universität Darmstadt, Germany, 2007.
  • Aleksandra Kovacevic, Sebastian Kaune, Hans Heckel, Andre Mink, Kalman Graffi, Oliver Heckmann, and Ralf Steinmetz. PeerfactSim.KOM - A Simulator for Large-Scale Peer-to-Peer Networks. Technical Report Tr-2006-06, TU Darmstadt, 2006.


Monographien

  • Kalman Graffi. Monitoring and Management of Peer-to-Peer Systems. PhD thesis, 2010.
  • Kalman Graffi. A Security Framework for Organic Mesh Networks. Master’s thesis, Technische Universität Darmstadt, Germany, 2006.

 

 

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