Fakultäten » Mathematisch-naturwissenschaftliche Fakultät » Geographisches Institut » Geographic Information Science » Prof. Dr. Sara Irina Fabrikant » Fabrikant

Completed research project

Title / Titel Visual Analytics of spatio-temporal gaze Point Patterns in Eye movements (PopEye II)
PDF Abstract (PDF, 14 KB)
Summary / Zusammenfassung With this proposal we seek a two-year extension of a previously two year, SNF-funded project entitled “PopEye: Visual analytics of spatio-temporal gaze Point Patterns in Eye movements“. The first portion of this project had an initial duration of two years (01.03.2007 - 1.03.2009).

We propose to develop cognitively adequate visual analytics methods for the exploration of and knowledge discovery from large space-time databases based on empirical evaluation with human users. We conceptualize time-dependent spatially referenced data as entities (e.g., humans, animals, money transactions, viruses, eye gaze locations, etc.) represented as points moving (changing x/y location) across a dynamic space context through time (t).

We hypothesize that the analysis and visualizations of movement patterns (e.g., eye or animal movement, etc.) are not only dependent on the depiction of physical movement characteristics of moving objects (e.g., velocity, duration, direction, etc.), but also have to consider how humans perceive and conceptualize movement and change of dynamic phenomena and processes. To assess this hypothesis our research program is based on a set of interdependent research questions, involving the development of a conceptual framework of movement, and empirically supported by a series of human-subject experiments.

The project will be carried out over two years through an international collaboration between the Department of Geography at the Universities of Zurich and the Psychology Department at the University of California Santa Barbara (USA). Modest resources are required to continue employing a PhD student, enable one collaborative visit by the student, and support conference attendances to disseminate research findings.

The results of the proposed work is firstly aimed at better understanding of how users explore and extract knowledge from moving objects datasets, and secondly at deriving empirically based design guidelines for cognitively adequate data exploration tools for the effective depiction and analysis of time-referenced spatial data sets at high resolution. The resulting visual analytics guidelines should be generic enough to be useful for all types of moving entity types, including various geographically relevant application domains (e.g., human trajectories and lifelines tracked with location-based services, habitat analyses with tagged animals in wildlife biology, eye movements analyses in geographic visualization experiments, etc.).

In summary, this interdisciplinary research project will have two key outcomes:
• To identify the characteristics of how movement is perceived and understood in static visualizations of movement data
• To develop empirically based design guidelines for the construction of cognitively adequate static visualizations of movement.
Publications / Publikationen A.-K. Lautenschütz, C. Davies, M. Raubal, A. Schwering, and E. Pederson (2007) The Influence of Scale, Context and Spatial Preposition in Linguistic Topology. in: Spatial Cognition V. Lecture Notes in Artificial Intelligence. Springer, Berlin.

Dodge, S., Weibel, R. & Lautenschütz, A.-K. (2008): Towards a Taxonomy of Movement Patterns. Information Visualization 7, pp. 240-252.

Anna-Katharina Lautenschütz, Sara Irina Fabrikant (2008): Towards a cognitive conceptual framework of movement, Agile Workshop 2008 “Geovisualization of Dynamics, Movement and Change”, May 5-8th 2008, Girona, Spain.

Anna-Katharina Lautenschütz (2009): Evaluating the importance of contextual information in visual displays of movement patterns, COSIT Doctoral Colloquium 2009, September 21-25th 2009, Aber Wrac'h, France.

Thomas Shipley, Sara Irina Fabrikant, Anna-Katharina Lautenschütz (2010): Creating perceptually salient animated displays of spatially coordinated events, Las Navas 2010, Las Navas, Spain.

Anna-Katharina Lautenschütz (2010): How context influences the segmentation of movement trajectories - an experimental approach for environmental and behavioral context, GIScience 2010, September 14-18th 2010, Zurich, Switzerland. Extended Abstracts online proceedings:

Jan Oliver Wallgrün, Anna-Katharina Lautenschütz (Eds.)(2010): Proceedings of the GIScience 2010 Doctoral Colloquium. Volume 38, ifgiPrints, Akademische Verlagsgesellschaft Aka GmbH (IOS Press), Heidelberg, Germany.

Keywords / Suchbegriffe space-time cognition and perception, moving point entities, eye movement tracking, geographic information visualization
Project leadership and contacts /
Projektleitung und Kontakte
Prof. Sara Irina Fabrikant, PhD (Project Leader)
Anna-Katharina Lautenschütz, MSc
Funding source(s) /
Unterstützt durch
SNF (Personen- und Projektförderung)
In collaboration with /
In Zusammenarbeit mit
Prof. Dr. Mary Hegarty, Department of Psychology, University of California Santa Barbara United States
Duration of Project / Projektdauer Sep 2009 to Mar 2011