ization method is an abstract function that transforms a scientific dataset into a visual representation to facilitate data exploration. In turn, a visualization display is the visual instantiation of a method. Here, we are interested in studying visualization methods for multivalued continuous scalar datasets in 2D, using multilayered icon-based methods. Furthermore, the goal of our visualizations is exploratory. We assume our end users want all the data displayed in an unbiased way: they have no preconceptions about more or less interesting areas that should be highlighted or blurred. In the multivalued case, their exploration seeks to understand the relationships among data values. 3 EXPERIMENTAL METHODOLOGY Our experimental methodology is inspired by psychophysical studies on visual search and cue interaction [1,2]. We developed an experiment in which the stimuli resemble real visualization displays, which are notably difficult to evaluate perceptually. While still effectively cont...
Daniel Acevedo, Jian Chen, David H. Laidlaw