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Analyzing eye movement patterns to improve map design

Kristien Ooms (UGent) , Philippe De Maeyer (UGent) and Veerle Fack (UGent)
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Abstract
Recently, the use of eye tracking systems has been introduced in the field of cartography and GIS to support the evaluation of the quality of maps towards the user. The quantitative eye movement metrics are related to for example the duration or the number of the fixations which are subsequently (statistically) compared to detect significant differences in map designs or between different user groups. Hence, besides these standard eye movement metrics, other - more spatial - measurements and visual interpretations of the data are more suitable to investigate how users process, store and retrieve information from a (dynamic and/or) interactive map. This information is crucial to get insights in how users construct their cognitive map: e.g. is there a general search pattern on a map and which elements influence this search pattern, how do users orient a map, what is the influence of for example a pan operation. These insights are in turn crucial to be able to construct more effective maps towards the user, since the visualisation of the information on the map can be keyed to the user his cognitive processes. The study focuses on a qualitative and visual approach of the eye movement data resulting from a user study in which 14 participants were tested while working on 20 different dynamic and interactive demo-maps. Since maps are essentially spatial objects, the analysis of these eye movement data is directed towards the locations of the fixations, the visual representation of the scanpaths, clustering and aggregation of the scanpaths. The results from this study show interesting patterns in the search strategies of users on dynamic and interactive maps.

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Chicago
Ooms, Kristien, Philippe De Maeyer, and Veerle Fack. 2010. “Analyzing Eye Movement Patterns to Improve Map Design.” In AutoCarto 2010, Proceedings. Cartography and Geographic Information Society (CaGIS).
APA
Ooms, Kristien, De Maeyer, P., & Fack, V. (2010). Analyzing eye movement patterns to improve map design. AutoCarto 2010, Proceedings. Presented at the 18th International research symposium on Computer-based Cartography and GIScience (AutoCarto 2010) : Geospatial data and geovisualization for the environments, security, and society, Cartography and Geographic Information Society (CaGIS).
Vancouver
1.
Ooms K, De Maeyer P, Fack V. Analyzing eye movement patterns to improve map design. AutoCarto 2010, Proceedings. Cartography and Geographic Information Society (CaGIS); 2010.
MLA
Ooms, Kristien, Philippe De Maeyer, and Veerle Fack. “Analyzing Eye Movement Patterns to Improve Map Design.” AutoCarto 2010, Proceedings. Cartography and Geographic Information Society (CaGIS), 2010. Print.
@inproceedings{1099772,
  abstract     = {Recently, the use of eye tracking systems has been introduced in the field of cartography and GIS to support the evaluation of the quality of maps towards the user. The quantitative eye movement metrics are related to for example the duration or the number of the fixations which are subsequently (statistically) compared to detect significant differences in map designs or between different user groups. Hence, besides these standard eye movement metrics, other - more spatial - measurements and visual interpretations of the data are more suitable to investigate how users process, store and retrieve information from a (dynamic and/or) interactive map. This information is crucial to get insights in how users construct their cognitive map: e.g. is there a general search pattern on a map and which elements influence this search pattern, how do users orient a map, what is the influence of for example a pan operation. These insights are in turn crucial to be able to construct more effective maps towards the user, since the visualisation of the information on the map can be keyed to the user his cognitive processes. The study focuses on a qualitative and visual approach of the eye movement data resulting from a user study in which 14 participants were tested while working on 20 different dynamic and interactive demo-maps. Since maps are essentially spatial objects, the analysis of these eye movement data is directed towards the locations of the fixations, the visual representation of the scanpaths, clustering and aggregation of the scanpaths. The results from this study show interesting patterns in the search strategies of users on dynamic and interactive maps.},
  author       = {Ooms, Kristien and De Maeyer, Philippe and Fack, Veerle},
  booktitle    = {AutoCarto 2010, Proceedings},
  language     = {eng},
  location     = {Orlando, FL, USA},
  pages        = {5},
  publisher    = {Cartography and Geographic Information Society (CaGIS)},
  title        = {Analyzing eye movement patterns to improve map design},
  year         = {2010},
}