Publications
Smart Cities at Risk!: Privacy and Security Borderlines from Social Networking in Cities. WWW ’18 Companion . Lyon, France: ACM, 2018.
PDF (536.28 KB)

Vol4All: A Volunteering Platform to Drive Innovation and Citizens Empowerment In WWW (Companion Volume). Perth, Australia: ACM, 2017.
PDF (1.79 MB)

Class-based Prediction Errors to Categorize Text with Out-of-vocabulary Words. ALW1'17. Vancouver, Canada, 2017.
Paper (211.93 KB)

Current Trends in Database Technology – EDBT 2004 Workshops, EDBT 2004 Workshops PhD, DataX, PIM, P2P&DB, and ClustWeb, Heraklion, Crete, Greece, March 14-18, 2004, Revised Selected Papers In EDBT Workshops, Edited by Wolfgang Lindner, Marco Mesiti, Can Türker, Yannis Tzitzikas and Athena Vakali. Vol. 3268. Lecture Notes in Computer Science 3268. Springer, 2004.
Detecting Aggressors and Bullies on Twitter In Proceedings of the 26th International Conference on World Wide Web Companion. WWW '17 Companion. Perth, Australia: ACM, 2017.
PDF (166.61 KB)
Poster (876.34 KB)


Hate is not Binary: Studying Abusive Behavior of #GamerGate on Twitter. HT '17. Prague, Czech Republic: ACM, 2017.
PDF (1.21 MB)
Presentation (1.52 MB)


Internet Science - Second International Conference, INSCI 2015, Brussels, Belgium, May 27-29, 2015, Proceedings In Lecture Notes in Computer Science, Edited by Thanassis Tiropanis, Athena Vakali, Laura Sartori and Pete Burnap. Vol. 9089. 9089. Springer, 2015.
Mean Birds: Detecting Aggression and Bullying on Twitter. WebSci '17. Troy, NY, USA: ACM, 2017.
PDF (1.45 MB)
Dataset (86.79 KB)
Presentation (2.61 MB)



Measuring #GamerGate: A Tale of Hate, Sexism, and Bullying In Proceedings of the 26th International Conference on World Wide Web Companion. WWW '17 Companion. Perth, Australia: ACM, 2017.
PDF (1.07 MB)
Presentation (1.04 MB)


New Trends in Database and Information Systems II - Selected papers of the 18th East European Conference on Advances in Databases and Information Systems and Associated Satellite Events, ADBIS 2014 Ohrid, Macedonia, September 7-10, 2014 Proceedings II In Advances in Intelligent Systems and Computing, Edited by Nick Bassiliades, Mirjana Ivanovic, Margita Kon-Popovska, Yannis Manolopoulos, Themis Palpanas, Goce Trajcevski and Athena Vakali. Vol. 312. 312. Springer, 2015.
New Trends in Databases and Information Systems, 17th East European Conference on Advances in Databases and Information Systems In ADBIS (2), Edited by Barbara Catania, Tania Cerquitelli, Silvia Chiusano, Giovanna Guerrini, Mirko Kämpf, Alfons Kemper, Boris Novikov, Themis Palpanas, Jaroslav Pokorny and Athena Vakali. Vol. 241. Advances in Intelligent Systems and Computing 241. Genoa, Italy: Springer, 2014.
Proceedings of the 4th Workshop on the Use of P2P, GRID and Agents for the Development of Content Networks, UPGRADE-CN’09, jointly held with the 18th International Symposium on High-Performance Distributed Computing (HPDC-18 2009), 10 June 2009, Ga In UPGRADE-CN, Edited by Giancarlo Fortino, Carlo Mastroianni, Al-Mukaddim Khan Pathan and Athena Vakali. ACM, 2009.
Transactions on Large-Scale Data- and Knowledge-Centered Systems In T. Large-Scale Data- and Knowledge-Centered Systems, Edited by Abdelkader Hameurlain, Josef Küng, Roland Wagner, Barbara Catania, Giovanna Guerrini, Themis Palpanas, Jaroslav Pokorny and Athena Vakali. Vol. 8920. Lecture Notes in Computer Science 8920. Springer, 2014.
Web Information Systems Engineering - WISE 2014 - 15th International Conference, Thessaloniki, Greece, October 12-14, 2014, Proceedings, Part I In WISE (1), Edited by Boualem Benatallah, Azer Bestavros, Yannis Manolopoulos, Athena Vakali and Yanchun Zhang. Vol. 8786. Lecture Notes in Computer Science 8786. Springer, 2014.
Web Information Systems Engineering - WISE 2014 - 15th International Conference, Thessaloniki, Greece, October 12-14, 2014, Proceedings, Part II In WISE (2), Edited by Boualem Benatallah, Azer Bestavros, Yannis Manolopoulos, Athena Vakali and Yanchun Zhang. Vol. 8787. Lecture Notes in Computer Science 8787. Springer, 2014.
Web Information Systems Engineering - WISE 2014 Workshops - 15th International Workshops IWCSN 2014, Org2 2014, PCS 2014, and QUAT 2014, Thessaloniki, Greece, October 12-14, 2014, Revised Selected Papers In Lecture Notes in Computer Science, Edited by Boualem Benatallah, Azer Bestavros, Barbara Catania, Armin Haller, Yannis Manolopoulos, Athena Vakali and Yanchun Zhang. Vol. 9051. 9051. Springer, 2015.
Automating the manufacturing process under a web based framework." Advances in Engineering Software 40 (2009): 956-964.
J43.pdf (1.13 MB)
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Capturing Social Data Evolution Using Graph Clustering." IEEE Internet Computing 17 (2013): 74-79.
PDF (996.48 KB)
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CDNs Content Outsourcing via Generalized Communities." IEEE Trans. Knowl. Data Eng. 21 (2009): 137-151.
J38.pdf (2.5 MB)
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CDNsim: A simulation tool for content distribution networks." ACM Trans. Model. Comput. Simul. 20 (2010).
J45.pdf (842.84 KB)
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Cloud Computing: Distributed Internet Computing for IT and Scientific Research." IEEE Internet Computing 13 (2009): 10-13.
J39.pdf (337.84 KB)
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Cloud-based architectures for Geo-located blogosphere dynamics detection." Smart Cities (2016).
PDF (1.02 MB)
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Cluster-Based Landmark and Event Detection for Tagged Photo Collections." IEEE MultiMedia 18 (2011): 52-63.
J46.pdf (882.09 KB)
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Clustering dense graphs: A web site graph paradigm." Inf. Process. Manage. 46 (2010): 247-267.
"Clustering subjects in a credential-based access control framework." Computers & Security 26 (2007): 120-129.
PDF (572.55 KB)
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