Publications

Journal Special Issues

  1. Special section on Reality-Based Interaction Evaluation Methods and Challenges, International Journal of Human-Computer Studies, 2011, 69 (1-2), 1-29.
  2. Special Issue on Designing and Evaluating Sociability in Online Video Games, Computers In Human Behavior, Forthcoming.

Edited Proceedings

  1. Christou, G., Law, E. L-C., Geerts, D., Nacke, L. E., & Zaphiris, P. (2013). Proceedings of the CHI 2013 Workshop on Designing and Evaluating Sociability in Online Video Games. ISBN: 978-9963-2904-0-6. Self-Published: Nicosia, Cyprus. (link to website) (link to proceedings)
  2. Christou, G.,  Zaphiris, P., & Law, E. L-C. (2011) Proceedings of the 1st European Workshop on HCI Design and Evaluation: the influence of domain on Human Computer Interaction design and evaluation. ISBN 978-2-917490-13-6. IRIT: Toulouse, France. (link to website) (link to proceedings)
  3. Christou, G. Law, E. L-C, Green, W. and Hornbæk, K. (Eds.) (2009) CHI 2009 Workshop: Challenges in the Evaluation of Usability and User Experience in Reality-Based Interaction, Boston, MA. ISBN 978-2-917490-09-9. IRIT: Toulouse, France. (link to website) (link to proceedings).
  4. Law, E. L. C., Bevan, N., Christou, G., Springett, M. & Lárusdóttir (Eds.). (2008) Proceedings of the International Workshop on Meaningful Measures: Valid Useful User Experience Measurement (VUUM). Reykjavik, Iceland. ISBN: 978-2-917490-02-0. IRIT: Toulouse, France. (link to website)

Journal Articles

  1. Christou, G. (2014). The interplay between immersion and appeal in video games. Computers in Human Behavior. 32, pp. 92-100. (link)
  2. Christou, G. (2013). A comparison between experienced and inexperienced video game players’ perceptions. Human-centric Computing and Information Sciences, 3:15. (link)
  3. Christou, G., Law, E. L-C., Zaphiris, P. and Ang, C. S. (2013) Challenges of designing for sociability to enhance player experience in massively multi-player online role playing games. Behaviour & Information Technology, 32(7), pp. 724-734. (link)
  4. Christou, G., Ritter, F. E., Jacob, R. J. K. (2012) CODEIN – A new notation for GOMS to handle evaluations of reality based interaction style interfaces. International Journal of Human Computer Interaction, 28(3), pp. 189-201 . (link)

Book Chapters

  1. Meletiou-Mavrotheris, M., Mavrou, K., Stylianou, G., Mavromoustakos, S., and Christou, G. (2014). Teaching Mathematics with Tablet PCs: A Professional Development Program Targeting Primary School Teachers, An, H., Alon, S., and Fuentes, D. (Eds.), Tablets in K-12 Education: Integrated Experiences and Implications, New Jersey: IGI Global. (link)
  2. Χρίστου, Γ. Τεχνοφοβικός τεχνόφιλος: Ο Κύπριος μη-χρήστης του διαδικτύου. Γουλιάμος, Κ. και Βρυωνίδης Μ. (επιμέλεια), Όψεις Κυπριακής Κοινωνίας:  Ευρήματα Ευρωπαϊκής Κοινωνικής Έρευνας, Εν Τύποις, Λευκωσία, 2010, σελ. 147 – 169. (Christou, G. Technophobic technofriend: The Cypriot non-user of the Internet, Gouliamos, K. & Vryonides, M. (Eds.), Aspects of Cyprus Society: Findings of the European Social Survey, En Typois, Nicosia, 2010, pp 147-169).
  3. Christou, G. (2005). The Use and Evolution of Affordance in HCI. In The Encyclopedia of Human Computer Interaction (pp. 668-672). Hershey, PA: Idea Group Reference.

Editorials

  1. Christou, G., Law, E. L.-C., Green, W., & Hornbæk, K. (2011). Reality-based interaction evaluation methods and challenges. International Journal of Human-Computer Studies, 69(1-2), 1-2.

Refereed Conference Proceedings Publications

  1. Christou, G., Nardi, N., and Cheimonidou, AZ. (2014) Using Video Games for the Rehabilitation of Children with Cerebral Palsy: A pilot study. In Proceedings of HCI International 2014 – Posters and Extended Abstracts, Heraklion, Crete, pp. 220-225. (link)
  2. G. Adamides, G., Katsanos, C., Christou, G., Xenos, M., Edan, Y. and Hadzilacos, T. (2014). HRI interface usability evaluation of camera placement and view for a tele-operated agricultural sprayer robot, In Proceedings of the International Conference of Agricultural Engineering, Zurich, Switzerland.
  3. Adamides, G., Christou, G., Katsanos, C., Kostaras, N., Xenos, M. Papadavid, G., and Hadzilacos, T. (2014). User interface considerations for telerobotics: the case of an agricultural robot sprayer. In Proceedings of the Second International Conference on Remote Sensing and Geoinformation of Environment, Nicosia, Cyprus. 
  4. Adamides, G., Christou, G., Katsanos, C., Kostaras, N., Xenos, M., Hadzilacos, T., and Edan, Y. (2014) A Reality-Based Interaction Interface for an Agricultural Teleoperated Robot Sprayer. In Proceedings of the 2nd International Conference on Robotics and Associated High Technologies and Equipment for Agriculture and Forestry (RHEA-2014). Madrid, Spain, pp. 367-376. (link)
  5. Lamas, D., Zaphiris, P., Christou, G. and Terzoli, A. (2013) Promoting Human-Computer Interaction Values and Practices in Small and Emerging Economies. In Proceedings of INTERACT 2013, Lecture Notes in Computer Science 8120, pp. 776.
  6. Katzis, K., Christou, G. & Chouchourelou, A. (2013). Promoting interdisciplinarity with engineering students. In Proceedings of the PAEE 2013 International Symposium on Project Approaches in Engineering Education, pp. ID22-1 – ID22.8. (link)
  7. Adamides, G., Katsanos, C., Christou, G., Xenos, M., Kostaras, N. and Hadzilacos, T. (2013). Human-Robot Interaction in Agriculture: Usability Evaluation of three Input Devices for Spraying Grape Clusters. In Proceedings of EFITA 2013: Sustainable Agriculture through ICT Innovation, Torino, Italy, paper C0078. (link)
  8. Christou, G., Law, E. L-C.,  Geerts, D.,  Nacke, L. E. and Zaphiris, P. (2013). Designing and evaluating sociability in online video games. In CHI ’13 Extended Abstracts on Human Factors in Computing Systems (CHI EA ’13). Paris, France, pp. 3239-3242. (link)
  9. Christou, G. (2012). Exploring player perceptions that contribute to the appeal of World of Warcraft. Proceedings of Fun and Games 2012, Toulouse, France, pp. 105 – 108. (presentation) (link) (ACM link)
  10. Christou, G. (2011). Sanctions, Punishment, and Game design: Designing MMORPGs for fair treatment of players. Proceedings of MESM 2011 – GAMEON-ARABIA, Amman Open University, Amman, Jordan, 144-148. (link)
  11. Christou, G., Zaphiris, P., Ang, C. S., and Law, E. L-C. (2011). Designing for the User eXperience of Sociability in Multiplayer Online Games. In CHI EA’11 Proceedings of the 2011 Annual Conference Extended Abstracts on Human Factors in Computing Systems, Vancouver, BC, Canada, pp 879-882. (link)
  12. Christou, G., Law, E. L-C., Green, W. and Hornbaek, K. (2009). Challenges in evaluating usability and user experience of reality-based interaction. In CHI EA’09 Proceedings of the 2009 Annual Conference Extended Abstracts on Human Factors in Computing Systems, Boston, MA, USA, pp. 4811-4814. (link)
  13. Christou, G., Ritter, F. E. & Jacob, R. J. K. (2008). Modeling prehensile actions for the evaluation of Tangible User Interfaces. Proceedings of ITI 2008 International Conference of Information Technology Interfaces. Cavtat/Dubrovnik, Croatia: IEEE Explore. (link)
  14. Christou, G. (2007). Towards a new method for the evaluation of reality-based interaction. In Proceedings of CHI EA’07 Proceedings of the 2007 Annual Conference Extended Abstracts on Human Factors in Computing Systems, San Jose, CA, USA, pp. 2165-2170. (link)
  15. Christou, G., Jacob, R. J. K., & Cheng, P. L. (2006). Modeling the Task: Leveraging Knowledge-in-the-Head at Design Time. Proceedings of ICEIS 06 8th International Conference on Enterprise Information Systems, Paphos, Cyprus (pp. 131-134) (link)

  16. Christou, G., & Jacob, R. J. K. (2005). Identifiability: A Predictive Quantitative Measure for the Comparison of a Task Designed in Different Interaction Styles. Proceedings of HCI International 11th International Conference on Human Computer Interaction, Las Vegas, NV. CD-ROM. (link)

Refereed Workshop Proceedings Publications

  1. Christou, G. & Geerts, D. (2013). Towards Operationalizing Sociability in Online Video Games. In Proceedings of the CHI 2013 Workshop on Designing and Evaluating Sociability in Online Video Games, ISBN: 978-9963-2904-0-6 (pp. 12-15)
  2. Christou, G. (2010). Knowledge-Based Evaluation of Interaction [Abstract]. Proceedings of the Interaction Design and Human Computer Interaction Workshop: Part of the 4th International Conference on Typography and Visual Communication.
  3. Christou, G., Ritter, F. E. & Jacob, R. J. K. (2009). Knowledge-Based Usability Evaluation. Proceedings of the CHI 2009 Workshop: Challenges in the Evaluation of Usability and User Experience in Reality-Based Interaction, Boston, MA. ISBN 978-2-917490-09-9. IRIT: Toulouse, France. (link)
  4. Christou, G., Law, E. L-C, Green, W. and Hornbæk, K. (2009) Challenges in the Evaluation of Usability and User Experience in Reality-Based Interaction. Proceedings of the CHI 2009 Workshop: Challenges in the Evaluation of Usability and User Experience in Reality-Based Interaction, Boston, MA. ISBN 978-2-917490-09-9. IRIT: Toulouse, France. (link to proceedings)
  5. Christou, G. (2007) Review of CPM-GOMS. In R3UEMs: Review, Report and Refine Usability Evaluation Methods, Proceedings of the 3rd International Workshop of COST294-MAUSE, Athens, Greece.
  6. Christou, G., & Jacob, R. J. K. (2003). Evaluating and Comparing Interaction Styles Interactive Systems. Design, Specification, and Verification (Vol. 2844, pp. 183-194): Springer Berlin / Heidelberg. (link)

Invited Talks and Presentations

  1. Who is the game designer. Presentation at Kykkos Lyceum A’. 2013.
  2. The open-source movement: advantages and disadvantages for small software houses. Presentation at Cosine Consultants, Ltd. “Cosine Day”, 2010.
  3. Ηλεκτρονικός Αναλφαβητισμός στην Κύπρο. Ομιλία στο : “Προβλήματα και προβληματισμοί για την Κυπριακή Κοινωνία – Ευρήματα από την Ευρωπαϊκή Κοινωνική Έρευνα” (e-Illiteracy in Cyprus. Talk at the colloquium “Problems and discussions about the Cypriot Society – Findings from the European Social Survey”). 2008
  4. Το όραμα του Mark Weiser: Που πάμε; Παρουσίαση στο Λύκειο Παλλουριώτισσας. (The vision of Mark Weiser: Where we are headed. Presentation at Pallouriotissa Lyceum). 2008.
  5. Using an inference mechanism to implement access rules in a relational database. Presentation at Tufts University Computer Science Colloquium, 2001
  6. Security from User Inference in Relational Databases. Poster presentation at Tufts University Research and Graduate Study Fair, 2001.

Ph.D. Dissertation

Christou, G. (2007). CoDeIn: A Knowledge-Based Framework for the Description and Evaluation of Reality Based Interaction. Doctoral Dissertation, Tufts University (link). The dissertation is also available as a technical report at Tufts University’s Computer Science department: TR-2007-5 (link).