Software and Database Systems.Lab | SoDa

Optimizing Collaborative Filtering for Accurate Rating Predictions in Very Sparse Datasets

Submitted by admin on Fri, 2026-02-27 15:59

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.

A Large-Scale Empirical Study of LLM Orchestration and Ensemble Strategies for Sentiment Analysis in Recommender Systems

Submitted by admin on Sun, 2026-02-22 00:49

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.

Decorated papers in bookbinding: A proposal for the creation of metadata for its documentation.

Submitted by admin on Tue, 2025-12-30 22:00

Ntalouka E, Kyriaki-Manesis D, Choulis K, Vassilakis C. 2025. Decorated papers in bookbinding: A proposal for the creation of metadata for its documentation.. Journal of Integrated Information Management. 10

https://ejournals.epublishing.ekt.gr/index.php/jiim/article/view/41054/31947

A Machine Learning Framework for Harvesting and Harmonizing Cultural and Touristic Data

Submitted by admin on Tue, 2025-11-25 22:00

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.

On the use of pharmacies to establish a defibrillator network

Submitted by admin on Wed, 2025-09-17 00:07

Wallace M, Champilomatis C, Ventirozou P, Pappas G, Poulopoulos V, Vassilakis C. 2025. On the use of pharmacies to establish a defibrillator network. 20th International Workshop on Semantic and Social Media Adaptation and Personalization.

Automated Test Generation and Marking Using LLMs

Submitted by admin on Sat, 2025-07-12 21:00

Papachristou I, Dimitroulakos G, Vassilakis C. 2025. Automated Test Generation and Marking Using LLMs. Electronics. 14:2835.

PROVATO: A Data-Centric Edge-AI Architecture forPrecision Livestock Monitoring Using IoT

Submitted by admin on Thu, 2025-07-10 00:07

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).

Stitching History into Semantics: LLM-Supported Knowledge Graph Engineering for 19th-Century Greek Bookbinding

Submitted by admin on Fri, 2025-06-20 00:05

Doumanas D, Ntalouka E, Vassilakis C, Wallace M, Kotis K. 2025. Stitching History into Semantics: LLM-Supported Knowledge Graph Engineering for 19th-Century Greek Bookbinding. Machine Learning and Knowledge Extraction. 7:59.

An evaluation review of user similarity metrics in sparse collaborative filtering datasets

Submitted by admin on Sun, 2025-06-01 21:00

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.

Optimising sustainable digital branding through big data: an analysis of the real estate sector across six continents

Submitted by admin on Thu, 2025-05-15 00:04

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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