Publications

Roumeliotis KI, Margaris D, Spiliotopoulos D, Vassilakis C.  2026.  A Large-Scale Empirical Study of LLM Orchestration and Ensemble Strategies for Sentiment Analysis in Recommender Systems. Future Internet. 18:112.

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Lapadaki S-A, Nanos J, Margaris D, Vassilakis C, Spiliotopoulos D.  2026.  Optimizing Collaborative Filtering for Accurate Rating Predictions in Very Sparse Datasets. Future Internet. 18:114.

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Assimakopoulos F, Vassilakis C, Margaris D, Kotis K, Spiliotopoulos D.  2025.  AI and Related Technologies in the Fields of Smart Agriculture: A Review. Information. 16:100.

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Stathoulis JD, Bakalis VI, Vassilakis C.  2025.  Brain Computer Interfaces: A literature review. Hellenic Journal of Nursing. TBD

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Philippopoulos PI, Koutrakis KN, Tsafaras ED, Papadopoulou EG, Sigalas D, Tselikas ND, Ougiaroglou S, Vassilakis C.  2025.  Cost-Efficient RSSI-Based Indoor Proximity Positioning, for Large/Complex Museum Exhibition Spaces. Sensors. 25:2713.

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Sgardelis K, Margaris D, Spiliotopoulos D, Vassilakis C.  2025.  An evaluation review of user similarity metrics in sparse collaborative filtering datasets. International Journal of Data Science and Analytics.

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Sgardelis K, Margaris D, Spiliotopoulos D, Vassilakis C.  2025.  An evaluation review of user similarity metrics in sparse collaborative filtering datasets. International Journal of Data Science and Analytics.

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Sgardelis K, Margaris D, Spiliotopoulos D, Vassilakis C.  2025.  Experimental results for Evaluating User Similarity Metrics in Sparse Collaborative Filtering Datasets (version 2).

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Sgardelis K, Margaris D, Spiliotopoulos D, Vassilakis C.  2025.  Experimental results for Evaluating User Similarity Metrics in Sparse Collaborative Filtering Datasets (version 2).

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Doumanas D, Soularidis A, Spiliotopoulos D, Vassilakis C, Kotis K.  2025.  Fine-Tuning Large Language Models for Ontology Engineering: A Comparative Analysis of GPT-4 and Mistral. Applied Sciences. 15:2146.

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Doumanas D, Soularidis A, Spiliotopoulos D, Vassilakis C, Kotis K.  2025.  Fine-Tuning Large Language Models for Ontology Engineering: A Comparative Analysis of GPT-4 and Mistral. Applied Sciences. 15:2146.

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Margaris D, Vassilakis C, Spiliotopoulos D.  2025.  From Rating Predictions to Reliable Recommendations in Collaborative Filtering: The Concept of Recommendation Reliability Classes. Big Data and Cognitive Computing. 9:106.

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Sotiropoulos P, Vassilakis C.  2025.  A generalized, rule-based method for the detection of intermittent faults in software programs. Journal of Systems and Software. 219:112228.

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Deligiannis K, Tryfonopoulos C, Raftopoulou P, Vassilakis C, Kaffes V, Skiadopoulos S.  2025.  A Machine Learning Framework for Harvesting and Harmonizing Cultural and Touristic Data. Information. 16:1038.

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Kopanias L, Sotiropoulos P, Kolokotronis N, Vassilakis C.  2025.  MiniLib: A flow analysis–based approach for attack surface reduction through software debloating. Proceedings of the 2025 IEEE International Conference on Cyber Security and Resilience.

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Reklitis DP, Terzi MC, Sakas DP, Vassilakis C.  2025.  Optimising sustainable digital branding through big data: an analysis of the real estate sector across six continents. International Journal of Internet Marketing and Advertising. To appear

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Doumouras A, Mitikas E, Doulos E, Schoinoplokakis M, Nikolentzos G, Tryfonopoulos C, Skiadopoulos S, Vassilakis C, Raftopoulou* P.  2025.  PROVATO: A Data-Centric Edge-AI Architecture forPrecision Livestock Monitoring Using IoT. Hellenic Data Management Symposium (HDMS).

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Doumouras A, Mitikas E, Doulos E, Schoinoplokakis M, Nikolentzos G, Tryfonopoulos C, Skiadopoulos S, Vassilakis C, Raftopoulou* P.  2025.  PROVATO: A Data-Centric Edge-AI Architecture forPrecision Livestock Monitoring Using IoT. Hellenic Data Management Symposium (HDMS).

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Stathoulis JD, Bakalis VI, Vassilakis C.  2025.  Security Issues in Brain – Computer Interfaces (BCI). Hellenic Journal of Nursing. TBD

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Margaris D, Spiliotopoulos D, Sgardelis K, Vassilakis C.  2025.  Using Prediction Confidence Factors to Enhance Collaborative Filtering Recommendation Quality. Technologies. 13:181.

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Margaris D, Spiliotopoulos D, Sgardelis K, Vassilakis C.  2025.  Using Prediction Confidence Factors to Enhance Collaborative Filtering Recommendation Quality. Technologies. 13:181.

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Antoniou A, Vassilakis C, Kantianis G, Sylaiou S, Kolokithas G.  2025.  Virtual Cultural Experiences for the Elderly: Formative Studies and First Findings Regarding Cultural Content. Applied Sciences. 15:1820.

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Assimakopoulos F, Vassilakis C, Margaris D, Kotis K, Spiliotopoulos D.  2024.  Artificial Intelligence Tools for the Agriculture Value Chain: Status and Prospects. Electronics. 13:4362.

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Tsoukalos M, Chronis P, Platis N, Vassilakis C.  2024.  Estimating MPdist with SAX and Machine Learning. New Trends in Database and Information Systems (Proceedings of ADBIS 2024, Short Papers, Workshops, Doctoral Consortium and Tutorials).

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Sgardelis K, Margaris D, Spiliotopoulos D, Vassilakis C.  2024.  Experimental results for Evaluating User Similarity Metrics in Sparse Collaborative Filtering Datasets. SODA Lab Technical Reports.

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