TY - JOUR T1 - Characterization of Educational Resources in e-Learning Systems Using an Educational Metadata Profile JF - Journal of Educational Technology & Society Y1 - 2015 A1 - Solomou, Georgia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles PB - International Forum of Educational Technology & Society VL - 18 ER - TY - Generic T1 - DESIGN AND DEVELOPMENT OF A WEB-BASED TOOL FOR SUPPORTING EDUCATORS DURING AN INSTRUCTIONAL DESIGN PROCESS BASED ON LEARNING OBJECTS T2 - 7th Αnnual International Conference on Education and New Learning Technologies Y1 - 2015 A1 - Spyropoulou, Natalia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - 7th Αnnual International Conference on Education and New Learning Technologies ER - TY - JOUR T1 - Developing a Computer Programming MOOC JF - Procedia Computer Science Y1 - 2015 A1 - Spyropoulou, Natalia A1 - Demopoulou, Gerasimoula A1 - Christos J. Pierrakeas A1 - Koutsonikos, Ioannis A1 - Kameas, Achilles PB - Elsevier VL - 65 ER - TY - Generic T1 - Exploiting Concept Map Mining Process for e- Content Development T2 - 7th annual International Conference on Education and New Learning Technologies Y1 - 2015 A1 - Panopoulou, Chara A1 - Spyropoulou, Natalia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - 7th annual International Conference on Education and New Learning Technologies ER - TY - Generic T1 - THE EXTENTED CORRELLATION VERB ONTOLOGY: A NEW APPROACH FOR OBJECT PROPERTIES SPECIFICATION WITHIN DOMAIN KNOWLEDGE REPRESENTATION T2 - 11th International Conference Applied Computing Y1 - 2015 A1 - Panopoulou, Chara A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - 11th International Conference Applied Computing ER - TY - JOUR T1 - International Forum of Educational Technology & Society JF - Journal of Educational Technology & Society Y1 - 2015 A1 - Solomou, Georgia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles VL - 18 ER - TY - CONF T1 - Clarifying the digital content output formats for mobile learning in higher education T2 - Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on Y1 - 2014 A1 - Spyropoulou, Natalia A1 - Karathanasis, Ioannis A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on PB - IEEE ER - TY - JOUR T1 - CREATING MOOC GUIDELINES BASED ON BEST PRACTICES JF - EDULEARN14 Proceedings Y1 - 2014 A1 - Spyropoulou, Natalia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles PB - IATED ER - TY - CONF T1 - Ontological Modelling for Intelligent e-Learning Y1 - 2014 A1 - Aggelopoulou, Niki A1 - Christos J. Pierrakeas A1 - Artikis, Alexander A1 - Kalles, Dimitris ER - TY - CONF T1 - A correlation verb (CorrVerb) ontology for object properties specification within knowledge domain representations T2 - Proceedings of the 6th Balkan Conference in Informatics Y1 - 2013 A1 - Christos J. Pierrakeas A1 - Panagiotopoulos, Ioannis A1 - Kameas, Achilles JF - Proceedings of the 6th Balkan Conference in Informatics PB - ACM ER - TY - CONF T1 - Creating a LO Metadata Profile for Distance Learning: An Ontological Approach. T2 - MTSR Y1 - 2012 A1 - Nikolopoulos, George A1 - Kalou, Aikaterini K A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - MTSR ER - TY - CONF T1 - Experience from designing and applying collaborative learning services in distance adult education Y1 - 2012 A1 - Spanaka, Adamantia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles ER - TY - CONF T1 - Modeling the characteristics of a learning object for use within e-learning applications T2 - Proceedings of the Fifth Balkan Conference in Informatics Y1 - 2012 A1 - Nikolopoulos, George A1 - Solomou, Georgia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Proceedings of the Fifth Balkan Conference in Informatics PB - ACM ER - TY - CHAP T1 - Modeling the knowledge domain of the java programming language as an ontology T2 - Advances in Web-Based Learning-ICWL 2012 Y1 - 2012 A1 - Kouneli, Aggeliki A1 - Solomou, Georgia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Advances in Web-Based Learning-ICWL 2012 PB - Springer ER - TY - CHAP T1 - An Ontological Approach for Domain Knowledge Modeling and Management in E-Learning Systems T2 - Artificial Intelligence Applications and Innovations Y1 - 2012 A1 - Panagiotopoulos, Ioannis A1 - Kalou, Aikaterini A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Artificial Intelligence Applications and Innovations PB - Springer ER - TY - JOUR T1 - An Ontological Approach in Learning Programming Languages Y1 - 2012 A1 - Christos J. Pierrakeas A1 - Solomou, Georgia A1 - Kameas, Achilles ER - TY - CONF T1 - An Ontology Model for Building, Classifying and Using Learning Outcomes T2 - Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on Y1 - 2012 A1 - Kalou, Aikaterini A1 - Solomou, Georgia A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on PB - IEEE ER - TY - CONF T1 - An Ontology-Based Approach in Learning Programming Languages T2 - Informatics (PCI), 2012 16th Panhellenic Conference on Y1 - 2012 A1 - Christos J. Pierrakeas A1 - Solomou, Georgia A1 - Kameas, Achilles JF - Informatics (PCI), 2012 16th Panhellenic Conference on PB - IEEE ER - TY - CHAP T1 - An Ontology-Based Model for Student Representation in Intelligent Tutoring Systems for Distance Learning T2 - Artificial Intelligence Applications and Innovations Y1 - 2012 A1 - Panagiotopoulos, Ioannis A1 - Kalou, Aikaterini A1 - Christos J. Pierrakeas A1 - Kameas, Achilles JF - Artificial Intelligence Applications and Innovations PB - Springer Berlin Heidelberg ER - TY - JOUR T1 - Assisting tutors at the Hellenic Open University in the processes of designing, planning, managing and reusing learning activities JF - Proceedings of the 2009 European LAMS & Learning Design Conference Y1 - 2009 A1 - Christos J. Pierrakeas A1 - Papadakis, Spyros A1 - Xenos, Michalis ER - TY - JOUR T1 - Culture specific stress coping strategies used to alleviate occupational stress among Greek nursing personnel JF - Journal of Medical Psychology Y1 - 2009 A1 - Theodoratou, Maria A1 - Andreopoulou, Ourania A1 - Bekos, Vassilis A1 - Christos J. Pierrakeas A1 - Skiadopoulos, Spyros PB - Renaissance Medical Publishing VL - 1 ER - TY - CHAP T1 - On Developing and Communicating User Models for Distance Learning Based on Assignment and Exam Data T2 - Intelligent Interactive Systems in Knowledge-Based Environments Y1 - 2008 A1 - Hadzilacos, Thanasis A1 - Kalles, Dimitris A1 - Christos J. Pierrakeas JF - Intelligent Interactive Systems in Knowledge-Based Environments PB - Springer ER - TY - JOUR T1 - Intelligently Raising Academic Performance Alerts JF - 1st International Workshop on Combinations of Intelligent Methods and Applications (CIMA), 18th European Conference on Artificial Intelligence, Patras, Greece Y1 - 2008 A1 - Kalles, Dimitris A1 - Christos J. Pierrakeas A1 - Xenos, Michalis ER - TY - CONF T1 - Managing Large Scale Development of Educational Software Y1 - 2008 A1 - Christos J. Pierrakeas ER - TY - JOUR T1 - Cryptographically secured communication between tutors of the Computer Science course of the Hellenic Open University: Experiences from the introductory module ‘Introduction to Computer Science’(in Greek) JF - HELLENIC OPEN UNIVERSITY JOURNAL OF INFORMATICS Y1 - 2007 A1 - Stamatiou, Yiannis A1 - Christos J. Pierrakeas A1 - Xenos, Michalis VL - 1 ER - TY - CHAP T1 - Telemedicine applications of speech pathology based on online collaboration environments T2 - World Congress on Medical Physics and Biomedical Engineering 2006 Y1 - 2007 A1 - Christos J. Pierrakeas A1 - Georgopoulos, VC A1 - Malandraki, GA JF - World Congress on Medical Physics and Biomedical Engineering 2006 PB - Springer ER - TY - JOUR T1 - Analyzing student performance in distance learning with genetic algorithms and decision trees JF - Applied Artificial Intelligence Y1 - 2006 A1 - Kalles, Dimitris A1 - Christos J. Pierrakeas PB - Taylor & Francis VL - 20 ER - TY - CHAP T1 - On small data sets revealing big differences T2 - Advances in Artificial Intelligence Y1 - 2006 A1 - Hadzilacos, Thanasis A1 - Kalles, Dimitris A1 - Christos J. Pierrakeas A1 - Xenos, Michalis JF - Advances in Artificial Intelligence PB - Springer ER - TY - JOUR T1 - Snake venom poisoning in Greece. Experiences with 147 cases JF - European journal of internal medicine Y1 - 2006 A1 - Frangides, Christos Y A1 - Koulouras, Vasilios A1 - Kouni, Sophia N A1 - Tzortzatos, Gerasimos V A1 - Nikolaou, Athanasios A1 - Pneumaticos, John A1 - Christos J. Pierrakeas A1 - Niarchos, Constantinos A1 - Kounis, Nicholas G A1 - Koutsojannis, Constantinos M PB - Elsevier VL - 17 ER - TY - CHAP T1 - Using genetic algorithms and decision trees for a posteriori analysis and evaluation of tutoring practices based on student failure models T2 - Artificial Intelligence Applications and Innovations Y1 - 2006 A1 - Kalles, Dimitris A1 - Christos J. Pierrakeas JF - Artificial Intelligence Applications and Innovations PB - Springer ER - TY - JOUR T1 - Assessing the quality of web sites used in higher open distance education courses JF - Education, Communication & Information Y1 - 2004 A1 - Xenos, Michalis A1 - Dermitzioti, Evgenia A1 - Christos J. Pierrakeas PB - Taylor & Francis VL - 4 ER - TY - JOUR T1 - A comparative study of dropout rates and causes for two different distance education courses JF - The International Review of Research in Open and Distributed Learning Y1 - 2004 A1 - Christos J. Pierrakeas A1 - Xeno, Michalis A1 - Panagiotakopoulos, Christos A1 - Vergidis, Dimitris VL - 5 ER - TY - JOUR T1 - PREDICTING STUDENTS'PERFORMANCE IN DISTANCE LEARNING USING MACHINE LEARNING TECHNIQUES JF - Applied Artificial Intelligence Y1 - 2004 A1 - Kotsiantis, S A1 - Christos J. Pierrakeas A1 - Pintelas, P PB - Taylor & Francis VL - 18 ER - TY - JOUR T1 - Evaluating and improving educational material and tutoring aspects of distance learning systems JF - Studies in Educational Evaluation Y1 - 2003 A1 - Christos J. Pierrakeas A1 - Xenos, Michalis A1 - Pintelas, Panayiotis PB - Pergamon VL - 29 ER - TY - JOUR T1 - A survey on student dropout rates and dropout causes concerning the students in the Course of Informatics of the Hellenic Open University JF - Computers & Education Y1 - 2002 A1 - Xenos, Michalis A1 - Christos J. Pierrakeas A1 - Pintelas, Panagiotis PB - Elsevier VL - 39 ER -