Conference Committees

PCI 2012 General Co-Chairs Sokratis Katsikas, University of Piraeus Yannis Theodoridis, University of Piraeus

PCI 2012 Program Committee Co-Chairs Dimitrios D. Vergados, University of Piraeus Costas Lambrinoudakis, University of Piraeus

PCI 2012 Organizing Committee Ioannis Voyiatzis, Technological Educational Institute of Athens Christos Douligeris, University of Piraeus Christos Koilias, Technological Educational Institute of Athens Nikitas Karanikolas, Technological Educational Institute of Athens

Technical Program Committee Angeliki Alexiou, University of Piraeus Ioannis Anagnostopoulos, University of Central Greece Christos Anagnostopoulos, University of the Aegean Pantelis Angelidis, University of Western Macedonia Dimitris Apostolou, University of Piraeus Vassilis Athitsos, University of Texas at Arlington Ioannis Chatzigiannakis, University of Patras Periklis Chatzimisios, Alexander Technological Educational Institute of Thessaloniki Tasos Dagiuklas, Tecnological Educational Institute of Mesolonghi Panagiotis Demestichas, University of Piraeus Spyros Denazis, University of Patras Georgios Doukidis, Athens University of Economics and Business Christos Douligeris, University of Piraeus Christos Doulkeridis, University of Piraeus Stylianos Drakatos, Florida International University Pavlos Efraimidis, Democritus University of Thrace Dimitrios Efstathiou, Technological Educational Institute of Serres Costas Efstathiou, Technological Educational Institute of Athens George Efthymoglou, University of Piraeus Dimitris Geneiatakis, University of Piraeus Christos Georgiadis, University of Macedonia George Giaglis, Athens University of Economics and Business Eugenia Giannopoulou, Weill Cornell Medical College Aris Gkoulalas-Divanis, IBM Zurich George Gravvanis, Democritus University of Thrace Stefanos Gritzalis, University of the Aegean Maria Halkidi, University of Piraeus Athanassios Iossifides, Alexander Technological Educational Institute of Thessaloniki Athanasios Kakarountas, Technological Educational Institute of Ionian Islands, Hellenic Open University Alexandros Kaloxylos, University of Peloponnese Achilles Kameas, Hellenic Open University Athanasios Kanatas, University of Piraeus

xvi Dionisios Kandris, Technological Educational Institute of Athens George Karagiannidis, Aristotle University of Thessaloniki Dimitris Karagiannis, University of Vienna Nikitas Karanikolas, Technological Educational Institute of Athens Helen Karatza, Aristotle University of Thessaloniki George Karetsos, Technological Educational Institute of Larissa Maria Karyda, University of the Aegean Vassilios Katos, Democritus University of Thrace Eleftherios Kofidis, University of Piraeus Christos Koilias, Technological Educational Institute of Athens Spyros Kokolakis, University of the Aegean Dimitrios Kosmopoulos, Rutgers University, USA Charalampos Konstantopoulos, University of Piraeus Stavros Kotsopoulos, University of Patras Georgios Lioudakis, National Technical University of Athens Euripidis Loukis, University of the Aegean Vassilios Loumos, National Technical University of Athens Malamati Louta, University of Western Macedonia Emmanouil Magkos, Ionian University Ilias Maglogiannis, University of Central Greece Flora Malamateniou, University of Piraeus Yannis Manolopoulos, Aristotle University of Thessaloniki Ioannis Mavridis, University of Macedonia Apostolos Meliones, University of Piraeus Vangelis Metsis, University of Texas at Arlington Angelos Michalas, Technological Educational Institute of Western Macedonia Sarandis Mitropoulos, University of Piraeus Lilian Mitrou, University of the Aegean Ioannis Moscholios, University of Peloponnese Phivos Mylonas, National Technical University of Athens Stavros Nikolopoulos, University of Ioannina Christoforos Ntantogian, University of Piraeus Eirini Ntoutsi, Ludwig-Maximilians-Universität München Nikos Pelekis, University of Piraeus Nikolaos Pantazis, Tecnological Educational Institute of Athens Symeon Papavasiliou, National Technical University of Athens Fotini Paraskeva, University of Piraeus Kiriakos Patriarcheas, Hellenic Open University Nineta Polemi, University of Piraeus Andriana Prentza, University of Piraeus Panagiotis Rizomiliotis, University of the Aegean Angelos Rouskas, University of Piraeus Demetrios Sampson, University of Piraeus Aggeliki Sgora, University of Piraeus Cleo Sgouropoulou, Tecnological Educational Institute of Athens Nikitas-Marinos Sgouros, University of Piraeus Spiros Skiadopoulos, University of Peloponnese Charalambos Skianis, University of the Aegean Athanassios Skodras, Hellenic Open University Christos Skourlas, Tecnological Educational Institute of Athens Diomidis Spinellis, Athens University of Economics and Business

xvii Paul Spirakis, Computer Technology Institute and Press - Diophantus and University of Patras Kostas Tsagkaris, University of Piraeus Marinos Themistocleous, University of Piraeus Nikolaos Tselikas, University of Peloponnese George Tsihrintzis, University of Piraeus Antonios Tzes, University of Patras Michalis Vafopoulos, Aristotle University of Thessaloniki Iraklis Varlamis, Harokopio University Emmanouel Varvarigos, University of Patras George Vassilakopoulos, University of Piraeus Vassilios Verykios, Hellenic Open University Maria Virvou, University of Piraeus Vassilis Vitsas, Alexander Technological Educational Institute of Thessaloniki Vasileios Vlachos, Technological Educational Institute of Larissa George Vouros, University of Piraeus Artemios Voyiatzis, Industrial Systems Institute/R.C. Athena Ioannis Voyiatzis, Technological Educational Institute of Athens Christos Xenakis, University of Piraeus Michalis Xenos, Hellenic Open University

Special Sessions Chairs Ioannis Chatzigiannakis, Computer Technology Institute & Press Periklis Chatzimisios, Alexander TEI of Thessaloniki Athanassios Iossifides, Alexander TEI of Thessaloniki Nikitas Karanikolas, Technological Educational Institute of Athens Panagiotis Kikiras, AGT International GmbH Kiriakos Patriarcheas, Hellenic Open University Christos Pierrakeas, Hellenic Open University and Technological Educational Institute of Patras Cleo Sgouropoulou, Technological Educational Institute of Athens Georgios Sirakoulis, Democritus University of Thrace Christos Skourlas, Tecnological Educational Institute of Athens Dimitrios Soudris, National Technical University of Athens Ioannis Voyiatzis, Technological Educational Institute of Athens Michalis Xenos, Hellenic Open University

External Reviewers Demosthenes Akoumianakis, Technological Educational Institute of Crete Dimitris Anagnostou, Democritus University of Thrace George Drosatos, Democritus University of Thrace Michael Filippakis, University of Piraeus Eirini Kalliamvakou, Athens University of Economics and Business Vana Kalogeraki, Athens University of Economics and Business Despina Kopanaki, University of Piraeus Remous Aris Koutsiamanis, Democritus University of Thrace Elias Lipitakis, Athens University of Economics and Business Thanasis Loukopoulos, Technological Educational Institute of Lamia Panagis Magdalinos, National Kapodistrian University of Athens Dimitris Mitropoulos, Athens University of Economics and Business Spyros Panagiotakis, Technological Educational Institute of Crete Stavros Shiaeles, Democritus University of Thrace Panagiotis Tampakis, University of Piraeus

xviii Panagiota Tsompanopoulou, Hellenic Open University Paris Vassalos, Athens University of Economics and Business Michael Gr. Vassilakopoulos, University of Central Greece

Local Organizing Committee Eleni Darra, University of Piraeus Dimitra Georgiou, University of Piraeus Aikaterini Nikolodaki, University of Piraeus Stelios Ploumis, University of Piraeus Nikos Vrakas, University of Piraeus Maria Zogou, University of Piraeus

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