Publications

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2020
Margaris D, Kobusinska A, Spiliotopoulos D, Vassilakis C.  2020.  An Adaptive Social Network-Aware Collaborative Filtering Algorithm for Improved Rating Prediction Accuracy. IEEE Access. 8:68301–68310.
Margaris D, Spiliotopoulos D, Karagiorgos G, Vassilakis C.  2020.  An Algorithm for Density Enrichment of Sparse Collaborative Filtering Datasets Using Robust Predictions as Derived Ratings. Algorithms. 13:174.
Sotiropoulos P, Vassilakis C.  2020.  Application cases of the Additional Testsuites Framework.
Spiliotopoulos D, Margaris D, Vassilakis C.  2020.  Data-Assisted Persona Construction Using Social Media Data. Big Data and Cognitive Computing. 4:21.
Sotiropoulos P, Vassilakis C.  2020.  Detection of intermittent faults in software programs through identification of suspicious shared variable access patterns. Journal of Systems and Software. 159:110455.
Lykourentzou I, Liapis A, Papastathis C, Papangelis K, Vassilakis C.  2020.  Exploring Self-organisation in Crowd Teams. Proceedings of the Crowd-Powered e-Services (CROPS) Workshop in the context of the 19th IFIP Conference on e-Business, e-Services and e-Society (I3E 2019).
Aivazoglou M, Roussos A, Margaris D, Vassilakis C, Ioannidis S, Polakis J, Spiliotopoulos D.  2020.  A Fine-grained Social Network Recommender System. Social Network Analysis and Mining. 10(8)
Spiliotopoulos D, Kriemadis A, Vassilakis C.  2020.  From Smart Cities to Smart Rural Country: challenges and sustainability. Extended abstract Presentation in the 15th National and International Conderence of the Hellenic Society for Systemic Studies.
Deligiannis K, Raftopoulou P, Tryfonopoulos C, Platis N, Vassilakis C.  2020.  Hydria: An Online Data Lake for Multi-Faceted Analytics in the Cultural Heritage Domain. Big Data and Cognitive Computing. 4:7.
Margaris D, Vassilakis C.  2020.  Improving collaborative filtering’s rating prediction accuracy by considering users’ dynamic rating variability. International Journal of Big Data Intelligence. 7(2)
Margaris D, Vassilakis C.  2020.  Improving collaborative filtering’s rating prediction coverage in sparse datasets by exploiting the “friend of a friend” concept. International Journal of Big Data Intelligence. 7(1)
Spiliotopoulos D, Poulopoulos V, Margaris D, Makri E, Vassilakis C.  2020.  MOOC Accessibility from the Educator Perspective. Proceedings of the 22nd International Conference on Human-Computer Interaction.
Spiliotopoulos D, Makri E, Vassilakis C, Margaris D.  2020.  Multimodal Interaction: Correlates of Learners' Metacognitive Skill Training Negotiation Experience. Information. 11:381.
Koryzis D, Fitsilis F, Spiliotopoulos D, Theocharopoulos T, Margaris D, Vassilakis C.  2020.  Policy Making Analysis and Practitioner User Experience. Proceedings of the 22nd International Conference on Human-Computer Interaction.
Vassilakis C, Kotis K, Spiliotopoulos D, Margaris D, Kasapakis V, Anagnostopoulos C-N, Santipantakis G, Vouros GA, Kotsilieris T, Petukhova V et al..  2020.  A Semantic Mixed Reality Framework for Shared Cultural Experiences Ecosystems. Big Data and Cognitive Computing. 4:6.
Spiliotopoulos D, Kotis K, Vassilakis C, Margaris D.  2020.  Semantics-Driven Conversational Interfaces for Museum Chatbots. Proceedings of the 22nd International Conference on Human-Computer Interaction, volume "Culture and Computing".
Varitimiadis S, Kotis K, Spiliotopoulos D, Vassilakis C, Margaris D.  2020.  “Talking” Triples to Museum Chatbots. Proceedings of the 22nd International Conference on Human-Computer Interaction, volume "Culture and Computing".
Mathas C-M, Grammatikakis K-P, Vassilakis C, Kolokotronis N, Bilali V-G, Kavallieros D.  2020.  Threat landscape for smart grid systems. Proceedings of the 15th International Conference on Availability, Reliability and Security.
Mathas C-M, Vassilakis C, Kolokotronis N.  2020.  A Trust Management System for the IoT domain. Proceedings the 2020 IEEE World Congress on Services (SERVICES).
Margaris D, Spiliotopoulos D, Vassilakis C, Karagiorgos G.  2020.  A User Interface for Personalized Web Service Selection in Business Processes. Lecture Notes in Computer Science.
Margaris D, Vassilakis C, Spiliotopoulos D.  2020.  What makes a review a reliable rating in recommender systems? Information Processing & Management. 57(6):102304.
2019
Theodoropoulos A, Vassilakis C, Antoniou A, Wallace M, Lepouras G.  2019.  ATMF: A student-centered framework for the effective implementation of alternative teaching methods for CSEd. Proceedings of the Innovative Teaching of Introductory Topics in Information Technology - 3(IT) Workshop in the context of the 19th IFIP Conference on e-Business, e-Services and e-Society (I3E 2019).
Kolokotronis N, Brotsis S, Germanos G, Vassilakis C, Shiaeles S.  2019.  On Blockchain Architectures for Trust-based Collaborative Intrusion Detection. Proceedings of the 1st IEEE Services Workshop on Cyber Security and Resilience in the Internet Of Things, within IEEE Services 2019.