• Nikos Salamanos, Pantelitsa Leonidou, Nikolaos Laoutaris, Michael Sirivianos, Maria Aspri, Marius Paraschiv. "HyperGraphDis: Leveraging Hypergraphs for Contextual and Social-Based Disinformation Detection". International AAAI Conference On Web And Social Media (ICWSM), 2024. pdf
  
  
• Pantelitsa Leonidou, Nicolas Kourtellis, Nikos Salamanos, Michael Sirivianos. "Privacy-Preserving Online Content Moderation: A Federated Learning Use Case". Cyber Social Threats (CySoc) workshop co-located with the ACM Web Conference (WWW), 2023. pdf
  
  
• Marius Paraschiv, Nikos Salamanos, Costas Iordanou, Nikolaos Laoutaris, Michael Sirivianos. "A Unified Graph-Based Approach to Disinformation Detection using Contextual and Semantic Relations". International AAAI Conference On Web And Social Media (ICWSM), 2022. pdf
  
  
• Kostantinos Papadamou, Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Michael Sirivianos. "It is just a flu? Assessing the Effect of Watch History on YouTube's Pseudoscientific Video Recommendations". International AAAI Conference On Web And Social Media (ICWSM), 2022. pdf, video, dataset
  
  
• Kostantinos Papadamou, Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Michael Sirivianos. "How over is it? Understanding the Incel Community on YouTube". ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW), 2021. pdf, dataset, video
  
  
• Michael A. Georgiou, Aristodemos Paphitis, Michael Sirivianos, Herodotos Herodotou. "Hihooi: A Database Replication Middleware for Scaling Transactional Databases Consistently". IEEE Transactions on Knowledge and Data Engineering, 2020. pdf
  
  
• Kostantinos Papadamou, Savvas Zannettou, Bogdan-Cosmin Chifor, Sorin Teican, George Gugulea, Annamaria Recupero, Alberto Caponi, Claudio Pisa, Giuseppe Bianchi, Steven Gevers, Christos Xenakis, Michael Sirivianos. "Killing the Password and Preserving Privacy with Device-Centric and Attribute-based Authentication". IEEE Transactions on Information Forensics and Security, 2020. pdf
  In the news: El Pais, Philenews, Cordis, Forbes Romania.
  
  
• Kostantinos Papadamou, Antonis Papasavva, Savvas Zannettou, Jeremy Blackburn, Nicolas Kourtellis, Ilias Leontiadis, Gianluca Stringhini, Michael Sirivianos. "Disturbed YouTube For Kids: Characterizing And Detecting Inappropriate Videos Targeting Young Children". International AAAI Conference on Web and Social Media (ICWSM), 2020. pdf, video
  In the news: Bleepingcomputer, Zing.vn, New Scientist, Reddit, Washington Post (video), The New York Times.
  

  Awards: Spotlight session (top 8)

  
  
• Savvas Zannettou, Michael Sirivianos, Jeremy Blackburn, Nicolas Kourtellis. "The Web of False Information: Rumors, Fake News, Hoaxes, Clickbait, and Various Other Shenanigans". ACM Journal of Data and Information Quality, 2019. pdf
  
  
• Savvas Zannettou, Tristan Caulfield, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini, Jeremy Blackburn. "Disinformation Warfare: Understanding State-Sponsored Trolls on Twitter and Their Influence on the Web". Workshop on Computational Methods in CyberSafety, Online Harassment and Misinformation, co-located with The Web Conference, 2019. long version, pdf
  In the news: The Register, The Conversation, Houston Chronicle, US News.
  Policy: Regulating disinformation with artificial intelligence, EU Parliament Research Service.
  Awards: Best paper.
   
• Savvas Zannettou, Tristan Caulfield, William Setzer, Michael Sirivianos, Gianluca Stringhini, Jeremy Blackburn. "Who Let The Trolls Out? Towards Understanding State-Sponsored Trolls". ACM International Web Science Conference (WebSci), 2019. pdf
  In the news: TechXplore.
  
  
• Andri Ioannou, Jeremy Blackburn, Gianluca Stringhini, Emiliano De Cristofaro, Nicolas Kourtellis, Michael Sirivianos. "From Risk Factors to Detection and Intervention: A Practical Proposal for Future Work on Cyberbullying" Behaviour & Information Technology (TBIT), 2018. pdf
   
• Savvas Zannettou, Tristan Caulfield, Jeremy Blackburn, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini, and Guillermo Suarez-Tangil. "On the Origins of Memes by Means of Fringe Web Communities". ACM Internet Measurement Conference (IMC), 2018. pdf
  In the news: QUARTZ, Business Insider, Nerdcore, MIT Technology Review, VICE, InfoWars, Dailydot, Indy100, Thinkprogress, Iflscience, Hornet, Washington Post, BBC News, The Conversation, Rappler, El Pais, MotherJones, Raw Story, Bellingcat, Infowars.
  Awards: Distinguished paper
  
  
• Antigoni-Maria Founta, Constantinos Djouvas, Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Gianluca Stringhini, Athena Vakali, Michael Sirivianos and Nicolas Kourtellis. "Large Scale Crowdsourcing and Characterization of Twitter Abusive Behavior". International AAAI Conference on Web and Social Media (ICWSM), 2018. pdf
  
  
• Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini. "Understanding Web Archiving Services and Their (Mis)Use on Social Media". International AAAI Conference on the Web and Social Media (ICWSM), 2018. pdf
  
  
• Savvas Zannettou, Barry Bradlyn, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini, Haewoon Kwak, Jeremy Blackburn. "What is Gab? A Bastion of Free Speech or an Alt-Right Echo Chamber?". Workshop on Computational Methods in CyberSafety, Online Harassment and Misinformation, co-located with The Web Conference, 2018. pdf
  In the news: New Scientist.
   
• Savvas Zannettou, Tristan Caulfield, Emiliano De Cristofaro, Nicolas Kourtellis, Ilias Leontiadis, Michael Sirivianos, Gianluca Stringhini, Jeremy Blackburn. "The Web Centipede: Understanding How Web Communities Influence Each Other Through the Lens of Mainstream and Alternative News Sources". ACM Internet Measurement Conference (IMC), 2017. pdf
  In the news: The Atlantic, Benthamsgaze, Hackingdistributed, UAB News.
  Policy: Canadian Security Intelligence Service.


• C. Iordanou, C. Soriente, M. Sirivianos and N. Laoutaris. "Who is Fiddling with Prices? Building and Deploying a Watchdog Service for E-commerce". ACM SIGCOMM, 2017. pdf, tech-report, software tool, video
  In the news: Business Insider, Wall Street Journal 1, Wall Street Journal 2, Wall Street Journal 3.
  Policy: Consumer market study on online market segmentation through personalised pricing/offers in the European Union.
   
• Q. Cao, M. Sirivianos, X. Yang and K. Munagala. “Combating Friend Spam Using Social Rejections”. IEEE 35th International Conference on Distributed Computing Systems (ICDCS), 2015. pdf, tech-report 
   
• M. Sirivianos, K. Kim, J.W. Gan and X. Yang. "Leveraging Social Feedback to Verify Online Identity Claims". ACM Transactions on the Web (TWEB), 2014 . pdf
   
• L. Gyarmati, R. Stanojevic, M. Sirivianos and N. Laoutaris. "Sharing the Cost of Backbone Networks: Cui Bono?". ACM Internet Measurement Conference, 2012. pdf
   
• Q. Cao, M. Sirivianos, X. Yang and T. Pregueiro. "Aiding the Detection of Fake Accounts in Large Scale Social Online Services”. USENIX conference on Networked Systems Design and Implementation (NSDI), 2012. pdf
   
• Nikolaos Laoutaris, Michael Sirivianos, Xiaoyuan Yang and Pablo Rodriguez. "Inter-Datacenter Bulk Transfers with NetStitcher". Proceedings of the ACM SIGCOMM conference, 2011. pdf, tech-report
   
• Michael Sirivianos, Kyungbaek Kim, Xiaowei Yang. “SocialFilter: Introducing Social Trust to Collaborative Spam Mitigation". Proceedings of IEEE INFOCOM, 2011. pdf
   
• M. Sirivianos, X. Yang and S. Jarecki. "Robust and Efficient Incentives for Cooperative Content Distribution". IEEE/ACM Transactions on Networking. 2009. pdf
   
• M. Sirivianos, J. H. Park, X. Yang and S. Jarecki. "Dandelion: Cooperative Content Distribution with Robust Incentives". USENIX Annual Technical Conference, 2007. pdf
   
• M. Sirivianos, J. H. Park, R. Chen and X. Yang. "Free-riding in BitTorrent Networks with the Large View Exploit". IPTPS, 2007. pdf
   
• M. Goodrich, M. Sirivianos, J. Solis, G. Tsudik and E. Uzun. "Loud and Clear: Human Verifiable Authentication Based on Audio". 26th IEEE International Conference on Distributed Computing Systems, 2006. pdf

• Vaios Bolgouras, Konstantinos Papadamou, Ioana Stroinea, Michail Papadakis, George Gugulea, Michael Sirivianos, Christos Xenakis. Enabling Qualified Anonymity for Enhanced User Privacy in the Digital Era. 18th International Conference on Availability, Reliability and Security (ARES), 2023. pdf


• Pantelitsa Leonidou, Nikos Salamanos, Aristeidis Farao, Maria Aspri, Michael Sirivianos. A Qualitative Analysis of Illicit Arms Trafficking on Darknet Marketplaces. 3rd International Workshop on Advances on Privacy Preserving Technologies and Solutions (IWAPS) co-located with the 18th International Conference on Availability, Reliability and Security (ARES), 2023. pdf
  
  
• Aristodemos Paphitis, Nicolas Kourtellis and Michael Sirivianos. "Resilience of Blockchain Overlay Networks", 17th International Conference on Network and System Security (NSS), 2023. pdf, ppt
  
  
• Aristodemos Paphitis, Nicolas Kourtellis and Michael Sirivianos. "Graph Analysis of Blockchain P2P Overlays and their Security Implications", 9th International Symposium on Security and Privacy in Social Networks and Big Data (SocialSec), 2023. pdf, ppt
  
  
• Pantelitsa Leonidou, Nicolas Kourtellis, Nikos Salamanos, Michael Sirivianos. "Privacy-Preserving Online Content Moderation with Federated Learning". Posters and Demos, ACM Web Conference (WWW), 2023. pdf
  
  
• Nikos Salamanos, Michael J. Jensen, Costas Iordanou, Michael Sirivianos. "Did State-sponsored Trolls Shape the 2016 US Presidential Election Discourse? Quantifying Influence on Twitter". 9th International Symposium on Security and Privacy in Social Networks and Big Data (SocialSec), 2023. pdf, dataset, ppt
  
  
• Michael A. Georgiou, Michael Panayiotou, Lambros Odysseos, Aristodemos Paphitis, Michael Sirivianos, Herodotos Herodotou. "Attaining Workload Scalability and Strong Consistency for Replicated Databases with Hihooi". ACM SIGMOD Demonstration Track, 2021. pdf
  
  
• Aristeidis Farao, Sakshyam Panda, Sofia Anna Menesidou, Entso Veliou, Nikolaos Episkopos, George Kalatzantonakis, Farnaz Mohammadi, Nikolaos Georgopoulos, Michael Sirivianos, Nikos Salamanos, Spyros Loizou, Michalis Pingos, John Polley, Andrew Fielder, Emmanouil Panaousis, Christos Xenakis. "SECONDO: A Platform for Cybersecurity Investments and Cyber Insurance Decisions". International Conference on Trust and Privacy in Digital Business (TrustBus), 2020. pdf
  
  
• Markos Charalambous, Petros Papagiannis, Antonis Papasavva, Pantelitsa Leonidou, Rafael Constaninou, Lia Terzidou, Theodoros Christophides, Pantelis Nicolaou, Orfeas Theofanis, George Kalatzantonakis, Michael Sirivianos. "A Privacy-Preserving Architecture for the Protection of Adolescents in Online Social Networks". The Fifth International Conference on Cyber-Technologies and Cyber-Systems (CYBER), 2020. pdf, presentation
  
  
• Nikos Salamanos, Michael J. Jensen, Xinlei He, Yang Chen, Michael Sirivianos. "On the Influence of Twitter Trolls during the 2016 US Presidential Election". ArXiv, 2019. pdf
  
  
• Michael J. Jensen, Nikos Salamanos, Xinlei He, Yang Chen, Michael Sirivianos. "Russian Information Operations: Strategies And Tactics Of Influence". Annual Meeting of the American Political Science Association, 2019. presentation, pdf
  
  
• Michael Georgiou, Aristodemos Paphitis, Michael Sirivianos, Herodotos Herodotou. "Towards Auto-Scaling Existing Transactional Databases with Strong Consistency". International Workshop on Self-Managed Databases, co-located with IEEE ICDE, 2019. pdf
  
  
• Savvas Zannettou, Sotirios Chatzis, Kostantinos Papadamou, Michael Sirivianos. "The Good, the Bad and the Bait: Detecting and Characterizing Clickbait on YouTube". 1st Deep Learning and Security Workshop, co-located with the 39th IEEE Symposium on Security and Privacy, 2018. pdf
  
  
• Jeremy Blackburn, Emiliano De Cristofaro, Michael Sirivianos and Thorsten Strufe. "Cybersafety in Modern Online Social Networks (Dagstuhl Reports 17372)". Dagstuhl Reports, Schloss Dagstuhl-Leibniz-Zentrum fuer Informatik, 2018. pdf
   
• Antigoni Parmaxi, Kostantinos Papadamou, Michael Sirivianos and Makis Stamatellatos. "E-safety in Web 2.0 learning environments: a research synthesis and implications for researchers and practitioners". HCI International, 2017. pdf
   
• Kostantinos Papadamou, Riginos Samaras, and Michael Sirivianos. "Ensuring Authenticity and Fidelity of Captured Photos using Trusted Execution and Mobile Application Licensing Capabilities". 11th International Conference on Availability, Reliability and Security (ARES), 2016. pdf
   
• Andreas Tsirtsis, Nicolas Tsapatsoulis, Makis Stamatelatos, Kwstantinos Papadamou, Michael Sirivianos. "Cyber Security Risks for Minors: A Taxonomy and a Software Architecture". 11th International Workshop on Semantic and Social Media Adaptation and Personalization (SMAP), 2016. pdf
   
• Savvas Zannettou, Michael Sirivianos, and Fragkiskos Papadopoulos. “Exploiting Path Diversity in Datacenters using MPTCP-aware SDN”. IEEE Symposium on Computers and Communications (ISCC), 2016. pdf, MPTCP Linux kernel module contribution, MPTCP 0.9 release page
  Awards: First author mentioned among the contributors of the MP-TCP implementation, which got the ACM SIGCOMM networking systems award
  
  
• Savvas Zannettou, Fragkiskos Papadopoulos, and Michael Sirivianos. “Exploiting Path Diversity with Multipath TCP”. Poster in USENIX Symposium on Networked Systems Design and Implementation (NSDI), 2015. pdf
   
• M. Sirivianos, K. Kim, J.W. Gan and X. Yang. "Assessing the Veracity of Identity Assertions via OSNs". Fourth International Conference on Communication Systems and Networks (COMSNETS), 2012. pdf 
   
• M. Sirivianos. "Toward Attack-Resistant Distributed Information Systems by Means of Social Trust". Duke PhD Thesis, 2011. pdf 
   
• Michael Sirivianos, Kyungbaek Kim and Xiaowei Yang. "SocialFilter: Introducing Social Trust to Collaborative Spam Mitigation". Usenix Workshop on Collaborative Methods for Security and Privacy (CollSec), 2010. pdf
   
• M. Sirivianos, K. Kim and X. Yang. "FaceTrust: Assessing the Credibility of Online Personas via Social Networks". USENIX Workshop on Hot topics in security (HotSec), 2009. pdf
   
• M. Goodrich, M. Sirivianos, J. Solis, C. Soriente, G. Tsudik and E. Uzun. "Using Audio for Secure Device Pairing". International Journal of Security and Networks”, 2009. pdf
   
• M. Gjoka, M. Sirivianos, A. Markopoulou and X. Yang. "Poking Facebook: Characterization of OSN Applications”. WOSN '08 Proceedings of the first workshop on online social networks, 2008. pdf
   
• M. Sirivianos, D. Westhoff, F. Armknecht and J. Girao. "Non-Manipulable Aggregator Node Election Protocols for Wireless Sensor Networks". Fifth International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks and Workshops, 2007. pdf 
   
• M. Sirivianos, X. Yang and S. Jarecki. "Dandelion: Cooperative Content Distribution with Robust Incentives". Workshop on Economics of Networked Systems (NetEcon), 2006. pdf