Publications
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2012. Privacy Preservation by Disassociation. CoRR. abs/1207.0135
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2022. On Producing Accurate Rating Predictions in Sparse Collaborative Filtering Datasets. Information. 13:302.
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2024. On the Quality and Validity of Course Evaluation Questionnaires Used in Tertiary Education in Greece. Trends in Higher Education. 3(2):221–234.
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2017. Query personalization using social network information and collaborative filtering techniques. Future Generation of Computer Systems. Special Issue on Recommender Systems for Large-Scale Social Networks:440–450.
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2017. Query Reorganisation Algorithms for Efficient Boolean Information Filtering. IEEE Transactions on Knowledge and Data Engineering. 29(2):418–432.
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2000. Querying temporal and spatial constraint networks in PTIME. Artif. Intell.. 123:223–263.
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2023. Rating Prediction Quality Enhancement in Low-Density Collaborative Filtering Datasets. Big Data and Cognitive Computing. 7:59.
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2004. Real exhibitions in a virtual museum. Virtual Reality. 7:120–128.
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2010. A Reasoning System of Ternary Projective Relations. IEEE Trans. Knowl. Data Eng.. 22:161–178.
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2016. Recommendation information diffusion in social networks considering user influence and semantics. Social Network Analysis and Mining. 6:108.
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2009. Rewiring Strategies for Semantic Overlay Networks. Distributed and Parallel Databases (DAPD). 26:181–205.
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2025. Security Issues in Brain – Computer Interfaces (BCI). Hellenic Journal of Nursing. TBD
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2003. Selective Information Dissemination in P2P Networks: Problems and Solutions. SIGMOD Record, Special Issue on Peer-to-Peer Data Management. 32:71-76.
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2020. A Semantic Mixed Reality Framework for Shared Cultural Experiences Ecosystems. Big Data and Cognitive Computing. 4:6.
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2023. A Software Vulnerability Management Framework for the Minimization of System Attack Surface and Risk. Electronics. 12:2278.
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2010. Spreading Activation Over Ontologies: From Personal Context To Web Scale Reasoning. International Journal of Semantic Computing. Special issue on Web Scale Reasoning:59–102.
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2017. Stimulation of reflection and discussion in museum visits through the use of social media. Social Network Analysis and Mining. 7:1-12.
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2009. Storing and Indexing Spatial Data in P2P Systems. IEEE Trans. Knowl. Data Eng.. 21:287–300.
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2003. A system to support dissemination of knowledge and sharing of experiences in the working environment: Review Code 066. International Journal of Continuing Engineering Education and Lifelong Learning. 13:248-257.
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2011. Towards a methodological framework for the cognitive-behavioural evaluation of educational e-games. International Journal of Learning Technology. 6:263–287.
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2025. Using Prediction Confidence Factors to Enhance Collaborative Filtering Recommendation Quality. Technologies. 13:181.
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2017. Using Time Clusters for Following Users’ Shifts in Rating Practices. Complex Systems Informatics and Modeling Quarterly. 13
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2025. Virtual Cultural Experiences for the Elderly: Formative Studies and First Findings Regarding Cultural Content. Applied Sciences. 15:1820.
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2004. Virtual museums for all: Employing game technology for edutainment. Virtual Reality. 8:96–106.
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2006. Virtual reality in the e-Society. Virtual Reality. 11:71-73.