15. PCI 2011: Kastoria, Greece

Information Systems

• Constantinos T. Delistavrou, Konstantinos G. Margaritis:
  Towards an Integrated Teaching Environment for Parallel Programming. 3-7
  
• Ioannis Stamelos, Dimitrios Settas, Despoina Mallini:
  Teaching Software Project Management through Management Antipatterns. 8-12
  
• Stergios Tegos, Stavros N. Demetriadis, Anastasios Karakostas:
  MentorChat: Introducing a Configurable Conversational Agent as a Tool for Adaptive Online Collaboration Support. 13-17
  
• Theodoros Iliou, Georgios Paschalidis:
  Using an Automated Speech Emotion Recognition Technique to Explore the Impact of Bullying on Pupils Social Life. 18-22
  
• O. Papadopoulou:
  Evaluation of Four, Free and Open Source DICOM Software Tools. 23-27
  
• Anastasios Tsolakidis, Cleo Sgouropoulou, Ioannis Xydas, Olivier Terraz, Georgios Miaoulis:
  Academic Research Policy-Making and Evaluation Using Graph Visualisation. 28-32
  
• Nicholaos Petalidis, Gregory Gregoriadis, Alexandros Theodoridis, Antonios Chronakis:
  ProMaSI - A Project Management Simulator. 33-37
  

Databases and Data Mining

• Nikolaos Kouiroukidis, Georgios Evangelidis:
  The Effects of Dimensionality Curse in High Dimensional kNN Search. 41-45
  
• Evangelos Outsios, Georgios Evangelidis:
  Data Node Splitting Policies for Improved Range Query Efficiency in k-dimensional Point Data Indexes. 46-50
  
• George Roumelis, Michael Vassilakopoulos, Antonio Corral:
  Nearest Neighbor Algorithms Using xBR-Trees. 51-55
  
• Georgia S. Latsiou, Apostolos N. Papadopoulos:
  Incremental Discovery of Top-k Correlative Subgraphs. 56-60
  

Education Technologies

• Katerina Georgouli:
  Virtual Learning Environments - An Overview. 63-67
  
• Alexandros Papanikolaou, Vassilios Karakoidas, Vasileios Vlachos, Andreas Venieris, Christos Ilioudis, Georgios Zouganelis:
  A Hacker's Perspective on Educating Future Security Experts. 68-72
  
• F. Foskolos, A. Vagelatos, Th. Komninos:
  Pilot Introduction of IWB and COWs in Greek Schools. 73-77
  
• Apostolos Mavridis, Thrasyvoulos Tsiatsos, Stergios Tegos:
  Exploiting Web Conferencing to Support Collaborative Learning. 78-82
  

Algorithms and Data Structures

• Charalampos S. Kouzinopoulos, Konstantinos G. Margaritis:
  A Performance Evaluation of the Preprocessing Phase of Multiple Keyword Matching Algorithms. 85-89
  
• Dimitris Antoniou, Ioannis Kampouris, Evangelos Theodoridis, Athanasios K. Tsakalidis:
  Splaying for Compression: An Experimental Study. 90-94
  
• Michalis Vafopoulos:
  A Framework for Linked Data Business Models. 95-99
  
• Konstantinos Patakakis, Loukas Georgiadis, Vasileios A. Tatsis:
  Dynamic Dominators in Practice. 100-104
  

Networking

• Dimitrios Sisiaridis, B. Nick Rossiter:
  Applying Categorical Logic on a Holistic Security Architecture across Distributed Systems. 107-111
  
• I. P. Mavridis, A.-I. E. Androulakis, A. B. Halkias, Ph. Mylonas:
  Real-Life Paradigms of Wireless Network Security Attacks. 112-116
  
• George Kadas, Periklis Chatzimisios:
  Collaborative Efforts for Safety and Security in Vehicular Communication Networks. 117-121
  
• Stefanos Harhalakis, Nikolaos Samaras, Vasileios Vitsas:
  An Experimental Study of the Efficiency of Explicit Congestion Notification. 122-126
  
• Marie-Aurelie Nef, Sophia Karagiorgou, George I. Stamoulis, Panayotis Kikiras:
  Supporting Service Differentiation in Wireless Sensor Networks. 127-133
  
• Michail Tolkas, Michail Bletsas, Pantelis Angelidis:
  Handling Multicast Video over Non Multicast Networks. 134-138
  
• Panagiotis G. Sarigiannidis, Malamati D. Louta, Angelos Michalas:
  On Effectively Determining the Downlink-to-Uplink Sub-frame Width Ratio for Mobile WiMAX Networks Using Spline Extrapolation. 139-143
  
• Pavlos Paraskevopoulos, Anastasios Gounaris:
  Optimal Tradeoff between Energy Consumption and Response Time in Large-Scale MapReduce Clusters. 144-148
  
• Spiridoula V. Margariti, Vassilios V. Dimakopoulos:
  A Novel Probabilistic Flooding Strategy for Unstructured Peer-to-Peer Networks. 149-153
  
• Nikolaos A. Pantazis, Stefanos A. Nikolidakis, Dionisis Kandris, Dimitrios D. Vergados:
  An Automated System for Integrated Service Management in Emergency Situations. 154-157
  

Open Source Software

• Apostolos Kritikos, Fragkiskos Chatziasimidis:
  SFparser: A Tool for Selectively Parsing SourceForge. 161-165
  
• Eleni Constantinou, George Kakarontzas, Ioannis Stamelos:
  Towards Open Source Software System Architecture Recovery Using Design Metrics. 166-170
  
• Skordas Ioannis, George F. Fragulis, Athanassios G. Triantafyllou:
  e-AirQuality: A Dynamic Web Based Application for Evaluating the Air Quality Index for the City of Kozani, Hellas. 171-174
  
• Sotirios Kontogiannis, Alexandros Karakos, G. Kokkonis, P. Kitsos:
  Snmp for Ethernet Networks SETH: A Network Benchmark Toolkit for Managing Routers Statistical Information. 175-179
  

Multimedia Services

• Dimitrios Amanatidis, Michael Dossis:
  Use of Behavioral Synthesis to Implement a Cellular Neural Network for Image Processing Applications. 183-187
  
• N. Ntogas, D. Ventzas, M. Ventza:
  Denoising of Binarized Byzantine Textual Images. 188-193
  
• Andreas Papadakis, Konstantinos Zachos:
  Subjective and Objective Video Codec Evaluation. 194-198
  
• Emmanouil Skondras, Malamati D. Louta, Panagiotis G. Sarigiannidis:
  A Personalized Audio Web Service Using MPEG-7 and MPEG-21 Standards. 199-204
  

e-Services: Empirical Studies

• Evanthia Faliagka, Athanasios K. Tsakalidis, Danae Vaikousi:
  Teenagers' Use of Social Network Websites and Privacy Concerns: A Survey. 207-211
  
• Artemios G. Voyiatzis, Christos Fidas, Dimitrios N. Serpanos, Nikolaos M. Avouris:
  An Empirical Study on the Web Password Strength in Greece. 212-216
  
• Georgios Lappas:
  Social Multimedia Mining: A Social Informatics Perspective. 217-221
  
• Constantine J. Aivalis, Anthony C. Boucouvalas:
  Log File Analysis of E-commerce Systems in Rich Internet Web 2.0 Applications. 222-226
  

Information Retrieval

• Nikitas N. Karanikolas:
  Search Culture. 229-234
  
• Ioannis Charalampopoulos, Ioannis Anagnostopoulos:
  A Comparable Study Employing WEKA Clustering/Classification Algorithms for Web Page Classification. 235-239
  
• Agis Papantoniou, Vassilis Loumos, Miltos Poulizos, Gregory Rigas:
  A Framework for Visualizing the Web of Data: Combining DBpedia and Open APIs. 240-244
  
• Ioannis Avraam, Ioannis Anagnostopoulos:
  A Comparison over Focused Web Crawling Strategies. 245-249
  

Numerical and Scientific Computations

• C. K. Filelis-Papadopoulos, George A. Gravvanis, Elias A. Lipitakis:
  Higher Order Finite Difference Preconditioned Scheme: A Multithreaded Approach. 253-258
  
• P. I. Matskanidis, George A. Gravvanis, Konstantinos M. Giannoutakis:
  A Note on Parallel Finite Element Approximate Inverses Using OpenMP on Multicore Systems. 259-264
  
• Spiros N. Agathos, Panagiotis E. Hadjidoukas, Vassilios V. Dimakopoulos:
  Design and Implementation of OpenMP Tasks in the OMPi Compiler. 265-269
  
• George Kakarontzas, Vassilis C. Gerogiannis, Ioannis Stamelos, Panagiotis Katsaros:
  Elastic Component Characterization with Respect to Quality Properties: An Intuitionistic Fuzzy-Based Approach. 270-274
  

Human-Computer Interaction

• Orestis Akribopoulos, Vasileios Georgitzikis, Anastasia Protopapa, Ioannis Chatzigiannakis:
  Building a Platform-Agnostic Wireless Network of Interconnected Smart Objects. 277-281
  
• Efi Papatheocharous, Panagiotis Gouvas:
  eTracer: An Innovative Near-Real Time Track-and-Trace Platform. 282-286
  
• Dimitrios Kravvaris, Eleni Thanou, Konstantinos Chorianopoulos:
  Evaluation of Tip-Activated and Push-Button Infrared Pens for Interactive Whiteboards. 287-291
  
• Michael N. Kalochristianakis, Kostas Grammatikakis, Manolis Saldaris, Irene Mastorakis, Grigoris Tzanodaskalakis:
  The Concept and Design of an Open, Integrated Print Charging System. 292-296
  

eCommerce, eBusiness, eGovernment, eHealth

• Michalis Vafopoulos, Thomas Theodoridis, Dimitris Kontokostas:
  Inter-viewing the Amazon Web Salespersons: Trends, Complementarities and Competition. 299-303
  
• Andreas Papadakis, Konstantinos Rantos, Antonis Stasis:
  Promoting e-Gov Services: e-Document Interoperability across EU. 304-308
  
• Dionisis Georgopoulos:
  The Military Model in I.T. and Computer Studies: A Violation against Women's Rights in Work and Education. 309-314
  
• Spyros Arvanitis, Euripidis Loukis, Vasiliki Diamantopoulou:
  Information Systems and Innovation in Greek Firms - An Empirical Investigation. 315-320
  
• Athanasios Keskempes, Anthony Roussos, Nikos Tselikas, Anthony C. Boucouvalas:
  Seismicity Online Grid Map for Regional Earthquake Activity Studies. 321-329
  

Special Session: Mobile Device Software Development

• Chris D. Kounavis, Efpraxia D. Zamani, George M. Giaglis:
  A Mobile Application Supporting Conference Attendees and Organizers. 333-337
  
• Anna Kasimati, Efpraxia Zamani:
  Education and Learning in the Semantic Web. 338-344
  
• Alexandros Soumplis, Eleni Chatzidaki, Eleni Koulocheri, Michalis Nik Xenos:
  Implementing an Open Personal Learning Environment. 345-349
  

Special Session: Quality in Educational Technologies

• Kiriakos Patriarcheas, Spyridon Papaloukas, Michalis Nik Xenos:
  Analyzing the Fora: An Algorithms Combination for the Representation of Messages. 353-357
  
• Stavros Valsamidis, Sotirios Kontogiannis, Alexandros Karakos, Ioannis Kazanidis:
  A Combined Algorithm for LMS Usage Assessment. 358-362
  
• Theodosios Sapounidis, Stavros N. Demetriadis:
  Touch Your Program with Hands: Qualities in Tangible Programming Tools for Novice. 363-367
  
• Nikolaos K. Tselios, Panagiota Altanopoulou, Christos Katsanos:
  Effectiveness of a Framed Wiki-Based Learning Activity in the Context of HCI Education. 368-372
  
• Manolis Chalaris, Anastasios Tsolakidis, Cleo Sgouropoulou, Ioannis Chalaris:
  Developing an Information System for Quality Assurance in Higher Education Using the Balanced Scorecard Technique - The Case Study of TEI-A. 373-377
  

Special Session: Real World Internet

• Christos E. Alexakos, Manos J. Georgoudakis, Athanasios P. Kalogeras, F. Andritsos, Panagiotis Konstantinopoulos, Ioannis Chatzigiannakis:
  Unattended Surveillance Network for After-Disaster Support in Public Transportations Sector. 381-385
  
• Marie-Aurelie Nef, Ioannis Filippopoulos, Eleftherios Voumvourakis, Aggelos Aggelis, Leonidas Perlepes, Georgios I. Stamoulis, Panayotis Kikiras:
  i-Protect: An Open Source Emergency Management Framework. 386-391
  
• Pantelis Vikatos, Evangelos Theodoridis, Georgios Mylonas, Athanasios K. Tsakalidis:
  PatrasSense: Participatory Monitoring of Environmental Conditions in Urban Areas Using Sensor Networks and Smartphones. 392-396
  
• A. Tagarakis, V. Liakos, L. Perlepes, S. Fountas, T. Gemtos:
  Wireless Sensor Network for Precision Agriculture. 397-402
  

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