machine learning, knowledge discovery, artificial intelligence, personalization, user modelling, information filtering, information extraction, event recognition, ontology learning, grammar learning, Web mining
Current and Recent Activities
Will be coordinating the project SPEEDD (Scalable ProactivE Event-Driven Decision making), starting February 1, 2014.
Ten Selected Recent Publications
Participating in the project REVEAL (REVEALing hidden concepts in Social Media), starting November 1, 2013.
Coordinating the BioASQ project, which has intitiated a challenge on large-scale biomedical semantic indexing and question answering. BioASQ in the Greek news (Kathimerini)
Organising the first BioASQ workshop, to take place at the Technical University of Valencia on September 27, 2103.
Co-organising the 4th Large Scale Hierarchical Text Classification challenge.
In cooperation with Scify, we are offering our generic personalization server PServer for free.
Organising the 2nd PServer workshop at NCSR "Demokritos", on October 12, 2013.
We developed a text analytics service for public consultations; we call it gov.insight (in Greek). gov.insight in the Greek news (Epikaira, Naftemporiki).
Undergrad and postgrad theses by the division of Intelligent Information Systems (in Greek).
Serving in the editorial boards of Real-Time Business Insights, UMUAI and COIN.
A. Skarlatidis, A. Artikis, J. Filippou and G. Paliouras, "A Probabilistic Logic Programming Event Calculus," Theory and Practice of Logic Programming, 2014, to appear. (pdf preprint)
A. Krithara and G. Paliouras, "TL-PLSA: Transfer learning between domains with different classes," Proceedings of the IEEE International Conference on Data Mining (ICDM), Dallas, Texas, USA, December 7-10, 2013. (pdf)
A. Artikis, A. Skarlatidis, F. Portet and G. Paliouras, "Logic-Based Event Recognition," The Knowledge Engineering Review, v. 27, n. 4, pp. 469-506, 2012. (KER online version) (pdf preprint)
G. Paliouras, "Discovery of Web user communities and their role in personalization," Special Issue on Coming of Age: Celebrating a Quarter Century of User Modeling and Personalization, J. Kay and G. McCalla (editors), User Modeling and User-Adapted Interaction, v. 22, n. 1-2, pp. 151-175, 2012. (UMUAI online version) (pdf preprint)
A. Artikis, M. Sergot and G. Paliouras, "Run-time composite event recognition," Proceedings of the 6th ACM International Conference on Distributed Event-Based Systems (DEBS), pp. 69-80, 2012. (ACM online version) (pdf)
E. Zavitsanos, G. Paliouras and G. Vouros, "Non-Parametric Estimation of Topic Hierarchies from Texts with Hierarchical Dirichlet Processes," Journal of Machine Learning Research, v. 12, pp. 2749-2775, 2011. (JMLR online version) (pdf)
E. Zavitsanos, G. Paliouras and G. Vouros, "Gold Standard Evaluation of Ontology Learning Methods Through Ontology Transformation and Alignment," IEEE Transactions on Knowledge and Data Engineering, v. 23, n. 11, pp. 1635-1648, 2011. (IEEE online version) (pdf preprint)
G. Paliouras, C.D. Spyropoulos and G. Tsatsaronis (editors), Knowledge-Driven Multimedia Information Extraction and Ontology Evolution - Bridging the Semantic Gap. Lecture Notes in Artificial Intelligence, n. 6050, Springer-Verlag, 2011. (online version)
A. Skarlatidis, G. Paliouras, G. Vouros and A. Artikis, "Probabilistic Event Calculus based on Markov Logic Networks," Proceedings of the 5th International Symposium on Rules: Research Based and Industry Focused (RuleML), pp. 155-170, 2011. (Springer online version) (pdf)
D. Pierrakos, G. Paliouras, "Personalizing Web Directories with the aid of Web Usage Data," IEEE Transactions on Knowledge and Data Engineering, v. 22, n. 9, pp. 1331-1344, 2010. (abstract) (IEEE online version) (pdf preprint)