Seremeti, Lambrini, Nikolitsa Aggelopoulou, Christos Pierrakeas, and Achilles Kameas. 2015. “Binary Relations In Educational Ontologies”. In 7th Balcan Conference in Informatics, 2-4 September, 7th Balcan Conference in Informatics, 2-4 September, Craiova, Romania.

Solomou, Georgia, Christos J Pierrakeas, and Achilles Kameas. 2015. “Characterization Of Educational Resources In E-Learning Systems Using An Educational Metadata Profile”. Journal of Educational Technology & Society 18: 246–260.

Spyropoulou, Natalia, Christos J Pierrakeas, and Achilles Kameas. 2015. “Design And Development Of A Web-Based Tool For Supporting Educators During An Instructional Design Process Based On Learning Objects”. 7th Αnnual International Conference on Education and New Learning Technologies.

Spyropoulou, Natalia, Gerasimoula Demopoulou, Christos J Pierrakeas, Ioannis Koutsonikos, and Achilles Kameas. 2015. “Developing A Computer Programming Mooc”. Procedia Computer Science 65: 182–191.

Antonelou, Georgia E, Christoforos V Karachristos, Elias C Stavropoulos, and Vassilios S Verykios. 2015. “Enhancing Self-Learning In A Web-Based Course Using Predefined Learning Paths”. 8th annual International Conference of Education, Research and Innovation (ICERI 2015).

Panopoulou, Chara, Natalia Spyropoulou, Christos J Pierrakeas, and Achilles Kameas. 2015. “Exploiting Concept Map Mining Process For E- Content Development”. 7th annual International Conference on Education and New Learning Technologies.

Panopoulou, Chara, Christos J Pierrakeas, and Achilles Kameas. 2015. “The Extented Correllation Verb Ontology: A New Approach For Object Properties Specification Within Domain Knowledge Representation”. 11th International Conference Applied Computing.

Solomou, Georgia, Christos J Pierrakeas, and Achilles Kameas. 2015. “International Forum Of Educational Technology & Society”. Journal of Educational Technology & Society 18: 246–260.

Ispoglou, Kyriakos, Christos Makris, Yannis C Stamatiou, Elias C Stavropoulos, Athanasios K Tsakalidis, and Vasileios Iosifidis. 2015. “Partial Order Preserving Encryption Search Trees”. In Database and Expert Systems Applications, Database and Expert Systems Applications, Springer International Publishing, 49–56.

Stavropoulos, Elias C, Vassilios S Verykios, and Vasileios Kagklis. 2015. “A Transversal Hypergraph Approach For The Frequent Itemset Hiding Problem”. Knowledge and Information Systems: 1–21.

Spyropoulou, Natalia, Ioannis Karathanasis, Christos J Pierrakeas, and Achilles Kameas. 2014. “Clarifying The Digital Content Output Formats For Mobile Learning In Higher Education”. In Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on, Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on, IEEE, 139–146.

Spyropoulou, Natalia, Christos J Pierrakeas, and Achilles Kameas. 2014. “Creating Mooc Guidelines Based On Best Practices”. EDULEARN14 Proceedings: 6981–6990.

Aggelopoulou, Niki, Christos J Pierrakeas, Alexander Artikis, and Dimitris Kalles. 2014. “Ontological Modelling For Intelligent E-Learning”.

Makris, Christos, Yannis Plegas, Yannis C Stamatiou, Elias C Stavropoulos, and Athanasios K Tsakalidis. 2014. “Reducing Redundant Information In Search Results Employing Approximation Algorithms”. In Database and Expert Systems Applications, Database and Expert Systems Applications, Springer International Publishing, 240–247.

Pierrakeas, Christos J, Ioannis Panagiotopoulos, and Achilles Kameas. 2013. “A Correlation Verb (Corrverb) Ontology For Object Properties Specification Within Knowledge Domain Representations”. In Proceedings of the 6th Balkan Conference in Informatics, Proceedings of the 6th Balkan Conference in Informatics, ACM, 195–200.

Nikolopoulos, George, Aikaterini K Kalou, Christos J Pierrakeas, and Achilles Kameas. 2012. “Creating A Lo Metadata Profile For Distance Learning: An Ontological Approach.”. In MTSR, MTSR, , 37–48.

Spanaka, Adamantia, Christos J Pierrakeas, and Achilles Kameas. 2012. “Experience From Designing And Applying Collaborative Learning Services In Distance Adult Education”.

Nikolopoulos, George, Georgia Solomou, Christos J Pierrakeas, and Achilles Kameas. 2012. “Modeling The Characteristics Of A Learning Object For Use Within E-Learning Applications”. In Proceedings of the Fifth Balkan Conference in Informatics, Proceedings of the Fifth Balkan Conference in Informatics, ACM, 112–117.

Kouneli, Aggeliki, Georgia Solomou, Christos J Pierrakeas, and Achilles Kameas. 2012. “Modeling The Knowledge Domain Of The Java Programming Language As An Ontology”. In Advances in Web-Based Learning-ICWL 2012, Advances in Web-Based Learning-ICWL 2012, Springer, 152–159.

Panagiotopoulos, Ioannis, Aikaterini Kalou, Christos J Pierrakeas, and Achilles Kameas. 2012. “An Ontological Approach For Domain Knowledge Modeling And Management In E-Learning Systems”. In Artificial Intelligence Applications and Innovations, Artificial Intelligence Applications and Innovations, Springer, 95–104.

Pierrakeas, Christos J, Georgia Solomou, and Achilles Kameas. 2012. “An Ontological Approach In Learning Programming Languages”.

Kalou, Aikaterini, Georgia Solomou, Christos J Pierrakeas, and Achilles Kameas. 2012. “An Ontology Model For Building, Classifying And Using Learning Outcomes”. In Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on, Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on, IEEE, 61–65.

Pierrakeas, Christos J, Georgia Solomou, and Achilles Kameas. 2012. “An Ontology-Based Approach In Learning Programming Languages”. In Informatics (PCI), 2012 16th Panhellenic Conference on, Informatics (PCI), 2012 16th Panhellenic Conference on, IEEE, 393–398.

Panagiotopoulos, Ioannis, Aikaterini Kalou, Christos J Pierrakeas, and Achilles Kameas. 2012. “An Ontology-Based Model For Student Representation In Intelligent Tutoring Systems For Distance Learning”. In Artificial Intelligence Applications and Innovations, Artificial Intelligence Applications and Innovations, Springer Berlin Heidelberg, 296–305.

Papadopoulos, A, I Vrettos, K Kamposioras, F Anagnostopoulos, G Giannopoulos, D Pectasides, D Niakas, and T Economopoulos. 2011. “Impact Of Cancer Patients' Disease Awareness On Their Family Members' Health-Related Quality Of Life: A Cross-Sectional Survey”. Psycho-Oncology 20: 294–301.