Mini-symposium “Data Visualization and Exploration”, June 17
To finalize his graduation project, Media Technology student Rick Companje organizes a mini-symposium with two presentations about “Data Visualization”. The mini-symposium is open to all, and free of cost. Students in the Media Technology programme are urged to attend.
Confirmed speakers are:
Rick Companje
(Media Technology MSc programme, Leiden University)Globe4D as a Tool for Scientific Data Visualization and Exploration
Scientific data visualization gives scientists more insight in large complex datasets. Datasets can be visualized and explored on various media. Interaction within data visualization is important to be able to constantly look at the data from different perspectives. Scientific data visualization can lead to the discovery of new patterns in datasets, new questions can arise, conclusions can be drawn and new hypotheses can be generated.
The research described in this paper investigates to what extend Globe4D – an interactive physical globe resulting from earlier research and formerly only used for educational purposes – can be used as a tool for scientists for visualizing and exploring datasets during the process of data analysis.
Globe4D has – because of it’s shape and interaction model – certain interface characteristics different than the scientific tools used on a computer. We investigated the views of scientists from different fields on data visualization, the scientific tools they use and in particular their views and ideas about using Globe4D in their research. Based on their suggestions we implemented certain improvements in Globe4D’s hardware and software where after a case study has been done on one particular research project focusing on visually representing ontologies using different geometrical representations. During this case study the development of a toolkit has been started for scientists to be able to use Globe4D as input- and output device in their own scientific software tools.
Koert van Mensvoort
What you See Is What You Feel on the simulation of touch in graphical user interfaces
http://www.powercursor.com
We explore the role of simulations in our society and specifically we investigate the application of simulated touch in visual interfaces. As part of this research, we present optically simulated haptic freedback, an approach to simulate touch percepts in a standard graphical user interface without resorting to special and scarcely available haptic input/output devices. We investigate the perceptual experience of optically simulated haptic feedback, establish the usability benefits of the technique and present a prototyping toolkit that enables designers to seamlessly apply visual force feedback in their interfaces. Our aim is to contribute to a richer and more physical paradigm of graphical user interfaces. Moreover, we aim to increase our awareness and understanding of simulations in general. Our scientific research results are therefore deliberately presented in a socio-cultural context that reflects the dominance of the visual modality in our society and the ever-increasing role of media and simulations in people’s everyday lives.
When: Wednesday June 17, 13h00 – 15h00.
Where: Gravensteen building, room 111. Pieterskerkhof 6, Downtown Leiden.



