An expert system for job matching of the unemployed. - Athanasios Drigas; Stelios Kouremenos; Spyros Vrettos; John Vrettaros; Dimitris Kouremenos (Expert Syst. Appl., 2004)

An Intelligent System for Solo Taxonomy. - John Vrettaros; George A. Vouros; Athanasios Drigas (IIP, 2006)

Development of an Intelligent Assessment System for Solo Taxonomies Using Fuzzy Logic. - John Vrettaros; George A. Vouros; Athanasios Drigas (ECSQARU, 2007)

Using the Self-Organizing Map (SOM) Algorithm, as a Prototype E-Content Retrieval Tool. - Athanasios Drigas; John Vrettaros (ICCSA (2), 2008)

Teaching of English to Hearing Impaired Individuals Whose Mother Language Is the Sign Language. - Athanasios Drigas; Dimitris Kouremenos; John Vrettaros (WSKS (1), 2008)

The Development of a Self-assessment System for the Learners Answers with the Use of GPNN. - John Pavlopoulos; John Vrettaros; George A. Vouros; Athanasios Drigas (WSKS (1), 2008)

Decade Review (1999-2009): Artificial Intelligence Techniques in Student Modeling. - Athanasios Drigas; Katerina Argyri; John Vrettaros (WSKS (2), 2009)

An Empirical Study on the Use of Web 2.0 by Greek Adult Instructors in Educational Procedures. - John Vrettaros; Alexis Tagoulis; Niki Giannopoulou; Athanasios Drigas (WSKS (2), 2009)

An Expedient Study on Back-Propagation (BPN) Neural Networks for Modeling Automated Evaluation of the Answers and Progress of Deaf Students' That Possess Basic Knowledge of the English Language and Computer Skills. - John Vrettaros; George A. Vouros; Athanasios Drigas (WSKS (2), 2009)

Decade review (1999-2009): progress of application of artificial intelligence tools in student diagnosis. - Athanasios Drigas; Katerina Argyri; John Vrettaros (Int. J. Soc. Humanist. Comput., 2009)

The diagnosis of the educational needs of the hearing impaired. - Athanasios Drigas; Dimitris Kouremenos; John Vrettaros; Miltos Karvounis; Pilios Stavrou (Int. J. Soc. Humanist. Comput., 2009)

Accelerated Modular Multiplication Algorithm of Large Word Length Numbers with a Fixed Module. - Nikolaos G. Bardis; Athanasios Drigas; Alexander P. Markovskyy; John Vrettaros (WSKS (2), 2010)

Teaching a Foreign Language to Deaf People via Vodcasting & Web 2.0 Tools. - Athanasios Drigas; John Vrettaros; Alexandros Tagoulis; Dimitris Kouremenos (WSKS (2), 2010)

Case study in using Web 2.0 tools by Greek educators. - John Vrettaros; Alexandros Tagoulis; Niki Giannopoulou; Athanasios Drigas (Int. J. Soc. Humanist. Comput., 2012)