Evènement pour le groupe Séminaire du LaBRI

Date 2009-02-19  14:00-15:00
TitreSém. LaBRI. Graph drawing algorithms: how good are they really? Helen Purchase 
RésuméMuch effort has been spent on designing algorithms for the automatic layout of graphs. Typically, the worth of these algorithms has been assessed by their computational efficiency and by the extent to which the graph drawings they produce conform to pre-defined "aesthetics" (e.g., minimising the number of edge crosses and edge bends, or maximising symmetry) that are assumed to make the drawing easier to understand. This talk will report on a long-term Human Computer Interaction project which investigates the worth of these algorithms with respect to human comprehension of the drawings produced. Empirical studies have been conducted looking at the aesthetics of static graph drawings, and, more recently, dynamic graphs which change over time. This talk will outline the experimental methodologies used and present the important results obtained. It will also outline the current project which investigates the importance of maintaining the user's mental map when a diagram changes over time. Dr Helen Purchase is Senior Lecturer in the Department of Computing Science at the University of Glasgow. 
LieuAmphi LaBRI 
OrateurHelen Purchase 
UrlUniversity of Glasgow 

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