Publications

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Books/Theses
[9] Αβούρης, Ν., Κατσάνος, Χ., Τσέλιος, Ν., & Μουστάκας, Κ. (2016). Εισαγωγή στην Αλληλεπίδραση Ανθρώπου Υπολογιστή, Εκδόσεις Πανεπιστημίου Πατρών.
[8] Συρμακέσσης, Σ., & Τσέλιος, Ν. (2016). Αλληλεπίδραση Ανθρώπου Υπολογιστή, Πάτρα: Ελληνικό Ανοικτό Πανεπιστήμιο.
[7] Αβούρης, Ν., Κατσάνος, Χ., Τσέλιος, Ν., & Μουστάκας, Κ. (2015). Εισαγωγή στην Αλληλεπίδραση Ανθρώπου Υπολογιστή, Δράση Κάλλιπος: Ελληνικά Ακαδημαϊκά Συγγράμματα και Βοηθήματα.
[6] Τσέλιος, Ν. (2011-2013). Εισαγωγή στην Αλληλεπίδραση Ανθρώπου Υπολογιστή, Ειδικό Διδακτικό Υλικό, Πάτρα: Ελληνικό Ανοικτό Πανεπιστήμιο.
 [5] Tselios, N. (2007). Introduction in Web Science. Social and pedagogical value of the Internet. Kleidarithmos Publications, Athens, pages 284.
 [4] Tselios, N. (2006). Modern applications of ICT in Education. Patras University Press, Patra, 130 pages.
 [3] Tselios, N. (2006). Fundamental services and pedagogical usages of the Web. Patras University Press, Patra, 254 pages.
 [2] Tselios, N. (2002). Advanced usability evaluation techniques of educational software. Unpublished doctorate thesis. Patras, May,2002.
 [1] Tselios, N. (1997). Computer aided Educational Systems, application in a laboratory course of electric machines. Diploma thesis, Patras, June,1997.

Journals

[W31] Loutou, S., Tselios, N., & Altanopoulou., P. (2017). The effect of twitter-mediated activities on learning outcomes and student engagement: A case study. International Journal of Web-Based Learning and Teaching Technologies (IJWLTT), (working paper).

[S30] Altanopoulou, P., & Tselios, N. (2017). Personality and learning in wiki-mediated collaborative activities: Evidence from four case studies. International Journal of Distance Education Technologies (IJDET, Submitted for publication).​
[S29] Revithi, A., Tselios, N. (2017). Extension of Technology Acceptance Model by using System Usability Scale to assess behavioral intention to use e-learning. Technology, Pedagogy and Education (submitted for publication).
[S28] Sapsani, G., & Tselios, N. (2017). Facebook use, personality characteristics and academic performance: A correlational study. Educational Computing Research (submitted for publication).
[J27] Pitsolanti, M., Papadopoulou, F., & Tselios, N. (2017). Evaluation of 50 Greek Science and Engineering University Departments using Google Scholar.  (Submitted for publication).
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[J26] Katrimpouza, A., Tselios, N., &  Kasimati. M. C. (2017). Twitter adoption, students' personality and academic performance: Lessons learned from 3 case studies. Innovations in Education and Teaching International​, (accepted for publication).
 [J25] Kakaraki, S., Tselios, N., & Katsanos, C. (2017). Internet addiction, academic performance and personality traits: A correlational study among female university students. International Journal of Learning Technology, (accepted).
 [J24] Altanopoulou, P., & Tselios, N. (2017). Assessing acceptance toward wiki technology in the context of Higher Education, The International Review of Research in Open and Distributed Learning (IRRODL), (accepted).
 [J23] Kotsiantis, S., Tselios, N., & Xenos, M. (2016). Students’ evaluation of Tutors in distance education: A Quasi-longitudinal study. International Journal of Learning Technology, (accepted).
[J22] Orfanou, K., Tselios, N., & Katsanos, C. (2015). Perceived usability evaluation of learning management systems: Empirical evaluation of the system usability scale. The International Review of Research in Open and Distance Learning (IRRODL), 16(2), 227-246.
[J21] Virla, G., Tselios, N., Komis, V. (2015). Investigating preschoolers’ problem solving strategies in computer-mediated collaborative environments. International Journal of Learning Technology, 10(1) (accepted for publication).
[J20] Altanopoulou, P., Tselios, N., Katsanos, C., Georgoutsou, M., & Panagiotaki, A. (2015). Wiki-mediated activities in higher education: Evidence-based analysis of learning effectiveness across three studies, Journal of Interactive Learning Environments (accepted for publication).
 [J19] Siambou, F., Komis, V., & Tselios, N. (2014). Online versus face-to-face collaboration in the context of a computer-supported modeling task, Computers in Human Behavior, special issue ‘Web-2.0 technologies in support of open, team-based learning and innovation’ (to appear).
[J18] Katsanos, C., Tselios, N., Goncalves, J., Juntunen, T., Kostakos V. (2014). Multipurpose public displays: Can automated grouping of applications and services enhance user experience?, International Journal of Human Computer Interaction, 30(3), 237-249, doi: 10.1080/10447318.2013.849547.
[J17] Komis, V., Depover, C., Karsenti, T., Tselios, N., & Filippidi, A. (2013). Comprendre l’usage des plateformes d’enseignement et les outils Web 2.0 dans dans des contextes universitaires de formation hybride : aspects méthodologiques, Formation et Profession, 20(3).
[J16] Kotsiantis, S., Tselios, N., Filippidi, A., & Komis, V. (2013). Investigation of Moodle usage patterns using Learning Analytics in the context of a blended learning course. Journal of Technology Enhanced Learning (special issue on Learning Analytics), (accepted for publication). 
[J15] Kostakos, V., Kukka, H., Goncalves, J., Tselios, N., & Ojala, T. (2013). Multipurpose public displays: How shortcut menus affect usage. IEEE Computer Graphics and Applications, 33(2), 50-57.
 [J14] Altanopoulou, P., Dontsidou, M., & Tselios, N. (2012). Evaluation of 93  major Greek University Departments using Google Scholar, Quality in Higher Education, 18(1), 111-137.
 [J13] Katsanos, C., Tselios, N., Tsakoumis, A., & Avouris, N. (2012). Learning about web accessibility: A project based tool-mediated approach. Education and Information Technologies, 17(1), 79-94. doi: 10.1007/s10639-010-9145-5
 [J12] Daskalakis, S., & Tselios, N. (2011). Evaluating e-learning initiatives: A literature review on methods and research frameworks. International Journal of Web-Based Learning and Teaching Technologies (IJWLTT), 6(1), 35-51.
 [J11] Tselios, N., Daskalakis, S., & Papadopoulou, M. (2011). Assessing the Acceptance of a Blended Learning University Course. Educational Technology & Society, 14(2), 224–235.
 [J10] Katsanos, C., Tselios, N., & Avouris, N. (2010). A survey of tools supporting design and evaluation of websites based on models of human information interaction, International journal of Artificial Intelligence Tools, 19(6), 755-781.
 [J9] Katsanos, C., Tselios, N., & Avouris, N. (2010). Evaluating Web site Navigability: Validation of a tool-based approach through two eye-tracking studies. New review of Hypermedia and Multimedia, vol. 16(1-2), pp. 195-214.
 [J8] Siozou, S., Tselios, N., & Komis, V. (2008). Effect of multiple modalities in the context of programming education. Interactive Technology & Smart Education, 5(4), pp. 230-243.
 [J7] Katsanos C., Tselios N., & Avouris N. (2008). Automated semantic elaboration of web site information architecture. Interacting with computers, 20(6), 535-544, doi:10.1016/j.intcom.2008.08.002.
 [J6] Tselios, N., Avouris, N., & Komis, V. (2008). The effective combination of hybrid usability methods in evaluating educational applications of ICT: Issues and challenges.  Education and Information Technologies Journal, 13(1), 55-76, DOI:10.1007/s10639-007-9045-5. **
 [J5] Τσέλιος, Ν.,Γεωργόπουλος, Α., Πολίτης, Π.,Πύρζα, Φ.  Φανίκος, Α., & Κουμπούρη, Δ. (2007). Μελέτη της χρήσης πολλαπλών αναπαραστάσεων προγράμματος σε εκπαιδευτικό περιβάλλον προγραμματισμού,Themes in Education – Θέματα στην Εκπαίδευση,  2007, Τόμος 2, No 2-3, σελ. 243-270 (In Greek).
 [J4] Tselios, N., Stoica, A., Maragoudakis, M., Avouris, N., & Komis, V. (2006). Adaptive user support in open problem solving environments: A Bayesian Network approach. Educational Technology and Society, 9 (4), pp. 124-140.
 [J3] Tselios N., Avouris N., & Kordaki M., (2002).  Student Task Modeling in design and evaluation of open problem-solving environments, Journal of Education and Information Technologies, 7(1), 19-42.
 [J2] Tselios N., Avouris N., Dimitracopoulou A., & Daskalaki S. (2001). Evaluation of Distance-learning Environments: Impact of Usability on Student Performance. International Journal of Educational Telecommunications, 7(4), 355-378.*
 [J1] Avouris, N.M., Tselios, N.K., & Tatakis, E.C. (2001). Development and evaluation of a computer-based laboratory teaching tool. Journal Computer Applications in Engineering Education, vol. 9 (1), March 2001. pp. 8-19.

[w1] Tselios, N., Karkali, P., & Smpiliri, N. (2016). Effective evaluation of metaphors of educational software for early childhood children. Journal of Early Chlidhood education. (Under preparation).


*Recommended paper from e-learning reviews organisation. http://www.elearning-reviews.org/topics/human-computer-interaction/usability/2001-tselios-et-al-evaluation-usability-student-performance
 Also cited by the U.S. Department of Education: U.S. Department of Education, Office of Planning, Evaluation, and Policy Development, Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies, Washington, D.C., 2009.
 ** 15th most-cited paper of the ‘Education and Information Technologies’ Journal from 2008 onwards.

Patents
 [P1] Tselios, N., & Maragoudakis, M.  (2005). Method and apparatus for automatic text input insertion in digital devices with a restricted number of keys. European Patent Office, Greek Industrial Property Organisation, Athens. (Patent Number 20030100441).
 [P2] Tselios N., Maragoudakis M.  (2004). Method and apparatus for automatic text input insertion in digital devices with a restricted number of keys. European Patent Office, Munich,Germany.

Book Chapters
[B10] Altanopoulou, P., Katsanos, C. & Tselios, N. (2014).  Effectiveness of Wiki-Based Learning in Higher Education. In Karagiannidis, P., Politis, P., Karasavvidis, I. (eds.) Research on e-Learning and ICT in Education: Technological, Pedagogical and Instructional Perspectives, pp. 137-147, Berlin: Springer-Verlag.
[B9] Πύρζα, Φ., Γεωργόπουλος, Α.,  Κουμπούρη, Θ., Φανίκος, Α.,  Κόμης, Β., Πολίτης,  Π.,  Τσέλιος, Ν. (2010). Το Εκπαιδευτικό Περιβάλλον «Αλγοριθμική»: για την Υποστήριξη της Διδασκαλίας της Αλγοριθμικής και του Προγραμματισμού στη Δευτεροβάθμια Εκπαίδευση. Στο (συλλογικός τόμος) Ανάπτυξη Εφαρμογών σε Προγραμματιστικό Περιβάλλον, Παρελθόν, Παρόν, Μέλλον, Εκδόσεις Νέων Τεχνολογιών, Αθήνα.
[B8] Tselios, N., Papadimitriou, I., Raptis, D., Yiannoutsou, N., Komis, V., & Avouris, N. (2008). Design for Mobile Learning in Museums. In Lumsden, J. (ed.), Handbook of Research on User Interface Design and Evaluation for Mobile Technology, pp. 253-269, Hershey, PA, USA:IDEA Publishing.
[B7] Tselios, N., Katsanos, C., Kahrimanis, G., & Avouris, N. (2007). Design and Evaluation of Web-based Learning Environments using Information Foraging Models. In Pahl, C. (ed.), Architecture Solutions for E-Learning Systems, pp. 320-339, Hershey, PA, USA: Information Science Reference.
[B6]  Papachristos, E., Tselios, N., Avouris, N. (2006). Modeling perceived value of color in web sites. in I.P Vlahavas, C.D. Spyropoulos (eds), Methods and Applications of Artificial Intelligence, Lecture Notes in AI, LNAI no. 2308, pp. 179-190, Springer-Verlag, Berlin, 2006. (citation index).
[B5] Papachristos, E., Tselios, N., Avouris, N. (2005). Inferring relations between color and emotional dimensions of a web site using Bayesian Networks. In Costabile, F. and Paterno, F., Interact 2005, LNCS No 3585, pp. 1075-1078, Springer Verlag, Berlin, 2005. (citation index).
[B4] Tselios, N. and Avouris, N. (2005). Usability Evaluation of instructional systems: Overview of suitable techniques for different pedagogical approaches. Retalis P. (editor), The Advanced Technologies of Internet in the Service of Learning, Kastaniotis, Athens 2005.
[B3] Tselios, N. K. and Avouris, N. M. (2003). Cognitive Task Modeling for system design and evaluation of non-routine task domains, in E. Hollnagel's (ed.) Handbook of Cognitive Task Design, Lawrence Erlbaum Associates, pp. 307-332, 2003.
[B2] Avouris, N., Tselios, N., Fidas, C., Papachristos, E., (2003). Website evaluation: A usability-based perspective, in Manolopoulos et al. (ed.), Advances in Computer Science, LNCS No 2563, pp. 217-232, Springer Verlag, Berlin, 2003. (citation index).
 [B1] Maragoudakis, M., Tselios, N.K., Fakotakis, N., Avouris, N.M. (2002). Improving SMS usability using Bayesian Networks. in I.P Vlahavas, C.D. Spyropoulos (eds), Methods and Applications of Artificial Intelligence, Lecture Notes in AI, LNAI no. 2308, pp. 179-190, Springer-Verlag, Berlin, 2002. (citation index).

International Conferences
[C27] Raptis, D., Tselios, N., Kjeldskov, J., Skov, M. (2013). Does size matter? Investigating the impact of mobile phone screen size on users’ perceived usability, task completion time and rate. In Proceedings of Mobile HCI 2013, Munich, Germany: ACM Press, August 27-30, 2013.
[C26] Katsanos C., Karousos N., Tselios N., Xenos. M., Avouris N. (2013). KLM Form Analyzer: Automated evaluation of Web form filling tasks using human performance models. In Proceedings of the 14th IFIP TC13 Conference in Human-Computer Interaction, Interact 2013, LNCS 8118, Part IΙ (pp. 530-537), Cape Town, South Africa: Springer Verlag, September 2-6, 2013.
[C25] Karousos N., Katsanos C., Tselios N., & Xenos M. (2013). Effortless tool-based evaluation of web form filling tasks using Keystroke Level Model and Fitts Law. In Extended Abstracts of the SIGCHI conference on Human factors in computing systems, CHI 2013 (pp. 1851-1856), Paris, France: ACM Press, April 27-May 2, 2013.
[C24] Tselios, N., Altanopoulou, P., & Komis, V. (2011). Don’t leave me alone: effectiveness of a framed wiki-based learning activity. WikiSym 2011, International Symposium on Wikis and Open Collaboration, pp. 49-52, Mountain View, California, October 3-5, 2011.
[C23] Filippidi, A., Tselios, N., & Komis, V. (2010). Impact of Moodle usage practices on students’ performance in the context of a blended learning environment. In SALL2010: Social Applications for Life Long Learning, Patras, Nov 4-5, 2010, 2-7, ISSN: 1792 – 586X.
[C22] Parissis, M., Tselios, N., & Komis, V. (2010). Is searching self efficacy related to search performance? A study of University students’ Web information searching strategies. In proceedings of IFIP Workshop - New Developments in ICT and Education, June 28-30, 2010, Amiens, France.
[C21] Tselios N., Katsanos C., & Avouris N. (2009). Investigating the Effect of Hyperlink Information Scent on Users’ Interaction with a Web Site. In Proceedings of the 12th IFIP TC13 Conference in Human-Computer Interaction, Interact 2009, LNCS 5727, Part II, pp. 138-142, Uppsala, Sweden: Springer Verlag, August 24-28, 2009.
[C20] Katsanos C., Tselios N., & Avouris N. (2009). Are Ten Participants Enough for Evaluating Information Scent of Web Page Hyperlinks?. In Proceedings of the 12th IFIP TC13 Conference in Human-Computer Interaction, Interact 2009, LNCS 5726, Part I, pp. 419-422, Uppsala, Sweden: Springer Verlag, August 24-28, 2009.
[C19] Komis, V., Filippidi, A. Karalis, T., Tselios, N. & Ravanis, K. (2008), 'Utiliser un système de formation à distance dans un contexte d’enseignement universitaire conventionnel'. In Colloque ACFAS  , Montréal, Canada , May 2008.
[C18] Katsanos C., Tselios N., & Avouris N. (2008). AutoCardSorter: Designing the Information Architecture of a Web Site using Latent Semantic Analysis. In Proceedings of the SIGCHI conference on Human factors in computing systems, CHI 2008 {Vol1, ISBN:978-1-60558-011-1}, p.p. 875-878, Florence, Italy: ACM Press, April 5-10, 2008 (18% acceptance rate).
[C17] Papadimitriou, I., Tselios, N., & Komis, V. (2007). Analysis of a non formal mobile learning activity based on activity theory. In Research methods in informal and mobile learning: How to get the data we really want, Workshop, 14 December 2007, WLE Centre, Institute of Education, London, UK.
[C16] Komis V., Filippidi A., Karalis T., Tselios N., & Ravanis, K. (2007). L’introduction des TIC dans l’enseignement Konstantinos universitaire en Grèce : une étude de cas centrée sur la formation des futurs enseignants de l’Université de Patras In IIème Colloque international du RIFEFF, 8-10 novembre 2007, IUFM de Guadeloupe.
[C15] Tselios, N., Katsanos, C., & Avouris, N. (2007). Beyond user centered design: A web design approach based on information foraging theory. Conference Workshop Are New Methods needed in User-Centered System Design? Interact, 2005, Rio de Janeiro, 10-14 September 2007.
[C14] Papadimitriou, I., Komis, V., Tselios, N., & Avouris, N. (2006). Designing PDA Mediated Educational Activities in the Frame of a Museum Visit. IADIS Cognition and Exploratory Learning in Digital Age (CELDA) 2006 Conference, Barcelona, Spain 8-10 December 2006.
[C13] Katsanos, C., Tselios, N., & Avouris, N. (2006). InfoScent Evaluator: A semi-automated tool to evaluate hyperlinks’ semantic appropriateness of a web site. In J. Kjeldskov & J. Paay (Eds.) Proceedings of OZCHI 2006 (pp. 373 – 376). Sydney: ACM Press.
[C12] Papachristos, E., Tselios, N., & Avouris, N. (2006). Bayesian modeling of color’s usage impact to web credibility. ECAI, The 17th European Conference on Artificial Intelligence, Riva del Garda, Italy, August 28 - September 1, 2006, pp. 41-45, IOS Press.
[C9] Avouris, N., Tselios, N., & Fiotakis, C. (2005). From Patterns of Use to Design Patterns: A Method for producing new design patterns from user activities. Conference Workshop on HCI design patterns: Mapping User Needs into Interaction Design Solutions. Interact, 2005, Rome, 12-16 September 2005.
[C8] Raptis, D., Tselios, N., & Avouris, N. (2005). Context-based design of mobile applications for museums: A Survey of existing practices. 7th International Conference on Human Computer Interaction with Mobile Devices and Services (Mobile HCI), pp. 153-160, 19-22 September 2005, Salzburg, Austria.
[C7] Papachristos, E., Tselios, N., & Avouris, N. (2005). Inferring relations between color and emotional dimensions of a web site using Bayesian Networks. Interact, 2005, Rome, 12-16 September 2005.
[C6] Avouris N., Fiotakis G., Tselios N., & Komis V. (2003). Tools for task-based interaction and collaboration analysis. In J.Jacko and C. Stephanidis (ed.) Human-Computer Interaction, vol 1, Proc. HCII 2003, pp. 13-17, Lawrence Erlbaum Assoc., Mahwah, NJ, 2003.
[C5] Avouris N., Komis V., Fiotakis G., Margaritis M., & Tselios N., (2003). A Tool to support interaction and collaboration analysis of learning activities. CBLIS, 5-10 July 2003, pp. 781-791, Nicosia, Cyprus.
[C3] Stoica, A., Tselios N.K., & Fidas, C. (2001). Adaptive user support in educational environments: A Bayesian Network approach. In Avouris, N.M., Fakotakis, N., (eds.)  Advances in Human Computer Interaction 2001, proceedings of 1st Panhellenic Conference with International participation, pp. 237-242,  7-9 December, 2001, Patras, Greece.
[C2] Tselios, N.K , Avouris, N.M., & Kordaki, M. (2001). Cognitive modeling tool : supporting student interaction modeling of open problem solving educational environments. In Avouris, N.M., Fakotakis N., (eds.) Advances in Human Computer Interaction 2001, proceedings of 1st Panhellenic Conference with International participation, pp. 91-95 7-9 December, 2001, Patras, Greece.
[C1] Avouris N., Tselios N., & Tatakis E. (1999). Computer assisted teaching of electrical machines: software evaluation techniques. Electromotion conference, pp. 622-628. Patras 1999.

Greek conferences
[C27] Τσέλιος, Ν., Βιολατζή, A.M., Γιαννοπούλου, Χ.,  Γιαχαλη, Θ., Γκολφινοπούλου, Θ.,  Δημοπούλου, Γ., Κουκουλάκη, Μ., Μουτάφη, Ε., Παπαδοπούλου, Φ., Παπανεοφυτου, Δ.,  Πιτσολάντη, Μ.Λ., Ρούσσου, Ε., Σαψάνη, Γ.,  Σούγκα, Ι., Σπανογιάννη, Δ., Τζάνη, Α.,  Τυροβολά, Δ., Χρυσικού, Ε. (2016). Συνεργατική Βιβλιομετρική Αξιολόγηση Ελληνικών Πανεπιστημιακών Τμημάτων Εκπαίδευσης, Στο 10ο Πανελλήνιο και Διεθνές Συνέδριο «Οι ΤΠΕ στην Εκπαίδευση» Πανεπιστήμιο Ιωαννίνων, 23 – 25 Σεπτεμβρίου 2016, Ιωάννινα.
[C26] Αλτανοπούλου, Π. & Τσέλιος, Ν.  (2016). Προσωπικότητα και μάθηση σε διαμεσολαβούμενες από wiki συνεργατικές δραστηριότητες: Συμπεράσματα από 3 μελέτες περίπτωσης, Στο 10ο Πανελλήνιο και Διεθνές Συνέδριο «Οι ΤΠΕ στην Εκπαίδευση» Πανεπιστήμιο Ιωαννίνων, 23 – 25 Σεπτεμβρίου 2016, Ιωάννινα (αποδεκτή για δημοσίευση).
[C25] Katsanos, C., Tselios, N., Karousos, N., & Xenos, M. (2015). Learning Web Form Design by using KLM Form Analyzer: A case study. In Proceedings of the 19th Pan-Hellenic Conference on Informatics, PCI 2015 (pp. XX-YY), Athens, Greece: IEEE CPS, 1-3 Oct., 2015.
[C23] Αλτανοπούλου, Π., & Τσέλιος, Ν. (2014). Πώς η προσωπικότητα επηρεάζει τη μάθηση σε συνεργατικές δραστηριότητες με τη χρήση wikis; Στα Πρακτικά Εργασιών 9ου Πανελλήνιου Συνεδρίου με Διεθνή Συμμετοχή «Τεχνολογίες της Πληροφορίας & Επικοινωνιών στην Εκπαίδευση», Πανεπιστήμιο Κρήτης, Ρέθυμνο, 3-5 Οκτωβρίου 2014.
[C22] Katsanos C., Tselios N., Xenos M. (2012). Perceived usability evaluation of Learning Management Systems: a first step towards standardization of the System Usability Scale in Greek. In Proceedings of the 16th Pan-Hellenic Conference on Informatics, PCI 2012 (pp. TO-ADD), Piraeus, Greece: IEEE CPS, 2-7 Oct, 2012, doi: TO-ADD
[C21] Tselios, N., Altanopoulou, P., Katsanos, C. (2011). Effectiveness of a framed wiki-based learning activity in the context of HCI education. Proceedings of PCI 2011, 15th Panhellenic Conference on Informatics, pp., Kastoria, Greece, 30 September-2 October, 2011.
[C20] Τσέλιος, Ν., Αλτανοπούλου, Π. (2011). Αξιολόγηση Ελληνικών Πανεπιστημιακών Τμημάτων Εκπαίδευσης με τη χρήση του Google Scholar και του δείκτη h. 2ο Πανελλήνιο συνέδριο «Ένταξη και χρήση των ΤΠΕ στην εκπαιδευτική διαδικασία», Πάτρα, 28-30 Απριλίου 2011.
[C19] Τσέλιος, Ν., Γεωργούτσου, Μ., Παναγιωτάκη,  M.A. (2011). Διερεύνηση της μαθησιακής αποτελεσματικότητας μιας βασισμένης σε wiki δραστηριότητας στο πλαίσιο της εκπαίδευσης σε ΤΠΕ. 2ο Πανελλήνιο συνέδριο «’Ενταξη και χρήση των ΤΠΕ στην εκπαιδευτική διαδικασία», Πάτρα, 28-30 Απριλίου 2011.
[C18] Δαβράζος, Γ., Κόμης Β., Τσέλιος, Ν. (2011). H αξιοποίηση της τεχνολογίας Wiki για τη συνεργατική οικοδόμηση της γνώσης σε δυο διαφορετικά εκπαιδευτικά πλαίσια. 2ο Πανελλήνιο συνέδριο «Ένταξη και χρήση των ΤΠΕ στην εκπαιδευτική διαδικασία», Πάτρα, 28-30 Απριλίου 2011.
 [C17] Παρίση, M., Κόμης, B.,  Τσέλιος, N. (2010). Μελέτη των στρατηγικών διατύπωσης ερωτημάτων σε μηχανές αναζήτησης. 7ο Πανελλήνιο συνέδριο με Διεθνή Συμμετοχή ‘Οι Τεχνολογίες της Πληροφορίας και των Επικοινωνιών στην Εκπαίδευση’, 23-26 Σεπτεμβρίου 2010, Κόρινθος.
 [C16] Φιλιππίδη, Α., Κόμης, B, Τσέλιος, N. (2010). Μελέτη αντιλήψεων, πρακτικών και επίδοσης φοιτητών σε μεικτό μοντέλο μάθησης, με τη χρήση Moodle. 7ο Πανελλήνιο συνέδριο με Διεθνή Συμμετοχή ‘Οι Τεχνολογίες της Πληροφορίας και των Επικοινωνιών στην Εκπαίδευση’, 23-26 Σεπτεμβρίου 2010, Κόρινθος.
 [C15] Παρίση, M., Τσέλιος, N. Κόμης, B. (2010). Μελέτη στρατηγικών αναζήτησης πληροφορίας στο Διαδίκτυο. 5ο Πανελλήνιο συνέδριο Διδακτικής της Πληροφορικής, 9-11 Απριλίου 2010, Αθήνα.
 [C14] Fidas, C., Katsanos, C., Papachristos, L., Tselios, N., Avouris, N. (2007). Remote usability evaluation: A survey of existing tools. In T. Papatheodorou, D. Christodoulakis and N. Karanikolas (Eds.) Proceedings of PCI 2007 11th Panhellenic Conference on Informatics, pp. 151-163, Patras, Greece, 18-20 May, 2007, ISBN: 978-960-89784-0-9.
 [C13] Papadopoulou, M., Tselios, N., Papachristos, L., Komis, B. (2006). Investigating impact of color’s usage in user interface design of educational software. Proceedings 5th ETPE Conf., vol. A., pp., Thessaloniki, 5-8 October 2006. (In Greek).
 [C12] Βύρλα Γ., Τσέλιος N., Κόμης B. (2006). Gender’s impact in perceived early childhood students’ collaborative strategies. Proceedings 5th ETPE Conf., vol. A., pp., Thessaloniki, 5-8 October 2006. (In Greek).
 [C11] Georgopoylos A., Tselios, N., Politis P., Komis B. (2005). Integrated educational environment to support teaching programming in High Schools, in Tzimogiannis A. (editor), Third Panhellenic Conference of Didactics of Informatics, University of Peloponnesus, Korinthos, October 2005.
 [C10] Tselios N., Komis V., Avouris N. (2004). Heuristic Evaluation of open learning environments by simulated experts, Proceedings 4th ETPE Conf., vol. A., pp. 587-596, Athens, October 2004 (in Greek).
 [C9] Fiotakis G., Avouris N., Komis V., Tselios N., (2004). Tools for Qualitative Data Analysis in the Context of Activity Theory: The ColAT software. Proceedings 4th ETPE Conf., vol A., pp. 545-554, Athens, October 2004 (in Greek).
 [C8] Tselios N., Komninou M., Avouris N. (2002). Usability of Educational Software: Problems and Proposals, Proc. 3rd Pan-Hellenic Conference on Information and Communication Technologies in Education, Rhodes, Volume I, pp. 775-784, September, 2002 (in Greek).
[C7] Tselios N., Avouris N. (2002). Recognizability of iconic representations in educational software. Proc. 3rd Pan-Hellenic Conference on Information and Communication Technologies in Education, Rhodes, Volume I, pp. 795-804, 26th-29th September, 2002 (in Greek).
[C6] Tselios, N.K., Feidas, C., Avouris, N.M. (2001). Usability evaluation of web based applications. Proceedings of 8th Panhellenic Conference on Informatics, pp. 108-117, Nicosia, Cyprus, 8-10 November 2001.
[C5] Tselios, Ν.K., Maragoudakis, M., Avouris, Ν.M., Fakotakis, N., Kordaki, Μ. (2001).  Automatic diagnosis of student problem solving strategies using Bayesian Networks. Proc. 5th Panhellenic Conference with international participation in Didactics of Mathematics and Informatics in Education, October, 2001, M. Tzekaki (ed.), pp. 494-499, Aristotle Univ. Publication, Thessaloniki, 2001. (in Greek).
 [C4] Avouris N., Solomos K., Tselios N. (2001). The web as an open and distance learning delivery environment: alternative mechanisms for quality control , Proc. 1st Panhellenic Conference in Open and Distance Learning, vol 1, pp. 549-558, May 2001, Patras, Greece, (ed.) A. Lionarakis, Hellenic Open University Press, Patras, Greece (in Greek).
[C3] Tselios, N.K, Avouris, N.M., Fotopoulos, E. (2000). Usability evaluation of educational software supporting distance learning, Proceedings 2nd  Panhellenic Conference with International Participation on Information and Telecommunication Technologies in Education, pp. 361-370, Patras, October 2000 (in Greek).
[C2] Kordaki, M., Avouris, N.M., Tselios , N. K. (2000). Tools and methodologies for evaluation of open learning environments , Proceedings of 2nd  Panhellenic Conference with International Participation on Information and Telecommunication Technologies in Education, Patras, pp. 341-348. October 2000 (in Greek).
[C1] Avouris N., Tselios N.K. (1998). Conclusions from heuristic evaluation of educational software: Application laboratory support educational software. Infoworld, Athens, 1998.