• conference
  • journal
  • editorship
  • thesis


  • Andrew T. Duchowski, Krzysztof Krejtz, Izabela Krejtz, Cezary Biele, Anna Niedzielska, Peter Kiefer, Martin Raubal & Ioannis Giannopoulos. (2018). The index of pupillary activity: Measuring cognitive load vis-à-vis task difficulty with pupil oscillation. In ACM CHI Conference on Human Factors in Computing Systems (CHI 2018). ACM. 


  • Ioannis Giannopoulos, David Jonietz, Martin Raubal, Georgios Sarlas,Best Paper Award and Lisa Stähli (2017). Timing of Pedestrian Navigation Instructions. In Conference on Spatial Information Theory (COSIT 2017). 
  • Vasilis A. Anagnostopoulos, Michal Havlena, Peter Kiefer, Ioannis Giannopoulos, Konrad Schindler, and Martin Raubal (2017). Gaze-Informed Location Based Services. International Journal of Geographical Information Science. ACCEPTED.
  • Charis Gkonos, Ioannis Giannopoulos, and Martin Raubal (2017). Maps, Vibration or Gaze? Comparison of Novel Navigation Assistance in Indoor and Outdoor Environments. Journal of Location Based Services. ACCEPTED.
  • Andrew T. Duchowski, Krzysztof Krejtz, Cezary Biele, Anna Niedzielska, Peter Kiefer, Ioannis Giannopoulos, Nina Gehrer, and Michael Schönenberg (2017). An Inverse-Linear Logistic Model of the Main Sequence. Journal of Eye Movement Research, 2017. ACCEPTED.
  • Guest Editors: Peter Kiefer, Ioannis Giannopoulos, Martin Raubal, Andrew Duchowski (2017). Eye Tracking for Spatial Research. Spatial Cognition & Computation, 17(1-2). 
  • Peter Kiefer, Ioannis Giannopoulos, Martin Raubal, and Andrew T. Duchowski (2017). Eye Tracking for Spatial Research: Cognition, Computation, Challenges.  Spatial Cognition & Computation, 17(1-2):1-19
  • Peter Kiefer, Ioannis Giannopoulos, Vasilios Anagnostopoulos, Johannes Schöning, Martin Raubal (2016). Controllability matters: The user experience of adaptive maps.Geoinformatica, volume, issue. doi:10.1007/s10707-016-0282-x


  • Andrew T. Duchowski, Sophie Jörg, Tyler N. Allen, Ioannis Giannopoulos, Krzysztof Krejtz (2016). Eye Movement Synthesis. In Proceedings of the 2016 symposium on Eye tracking research & applications(ETRA ’16). pp. 147-154,  ACM.
  • David Rudi, Ioannis Giannopoulos, Peter Kiefer, Christian Peier and Martin Raubal (2016). Interacting with Maps on Optical Head-Mounted Displays. In Proceedings of the 4th ACM symposium on Spatial User Interaction (SUI ’16). pp. 3-12, ACM.
  • Verena Schnitzler, Ioannis Giannopoulos, Christoph Hölscher and Iva Barisic (2016). The Interplay of Pedestrian Navigation, Wayfinding Devices, and Environmental Features in Indoor Settings. In Proceedings of the 2016 symposium on Eye tracking research & applications (ETRA ’16). pp. 85-93, ACM
  • Julia Hempel, Arzu Coltekin, Ioannis Giannopoulos, Sophie Stellmach, Raimund Dachselt, Alzbeta Brychtova (2016). Gaze and Feet as Additional Input Modalities for Interaction with Spatial Data. In Proceedings of ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences. XXIII ISPRS Congress, Prague, Czech Republic, pp. 113-120.


  • Ioannis Giannopoulos, Peter Kiefer, and Martin Raubal (2015). GazeNav: Gaze-Based Pedestrian Navigation. In Proceedings of the 17th International Conference on Human-Computer Interaction with Mobile Devices & Services (MobileHCI ’15) New York, NY, USA. pp. 337-346, ACM.
  • Peter Kiefer, Simon Scheider, Ioannis Giannopoulos, and Paul Weiser (2015). A Wayfinding Grammar Based on Reference System Transformations. In Sara Irina Fabrikant, Martin Raubal, Michela Bertolotto, Clare Davies, Scott Freundschuh, and Scott Bell, editors,Spatial Information Theory (COSIT 2015), volume 9368 of Lecture Notes in Computer Science, pp. 447-467. Springer International Publishing.


  • Ioannis Giannopoulos, Peter Kiefer, Martin Raubal, Kai-Florian Richter, and Tyler Thrash (2014). Wayfinding Decision Situations: A Conceptual Model and Evaluation. In Duckham, M., Stewart, K., Pebesma, E., editors, Eighth International Conference on Geographic Information Science (GIScience), volume 8728 of Lecture Notes in Computer Science, pp. 221 – 234. Springer Verlag.
  • Peter Kiefer, Ioannis Giannopoulos, Martin Raubal, and Antonio Krüger, editors. Eye Tracking for Spatial Research, Proceedings of the 2nd International Workshop (in conjunction with GIScience 2014), number 1241 in CEUR Workshop Proceedings.
  • Tyler Thrash, Ioannis Giannopoulos, and Victor R. Schinazi (2014). Bidimensional regression: Issues with interpolation. In P. Bello, M. Guarini, M. McShane, & B. Scassellati (Eds.), Proceedings of the 36th Annual Conference of the Cognitive Science Society (pp. 1598 – 1603). Austin, TX: Cognitive Science Society.


  • Ioannis Giannopoulos. Supporting Wayfinding through Mobile GeoHCI. In Conference On Spatial Information Theory (COSIT): Doctoral Colloquium, 2013.
  • Peter Kiefer, Ioannis Giannopoulos, Martin Raubal, and Mary Hegarty, editors. Eye Tracking for Spatial Research, Proceedings of the 1st International Workshop (in conjunction with COSIT 2013), 2013.
  • Ioannis Giannopoulos, Peter Kiefer, and Martin Raubal. Mobile Outdoor Gaze-Based GeoHCI. In Geographic Human-Computer Interaction workshop at CHI 2013, pp. 12-13, Paris, France, 2013.