1. Erik Anderson 1, James Ahrens 2, Gilbert Preston 3, Antonio Baptista 4, Claudio Silva 1 VisTrails: Applications in Scientific Visualization 1 SCI Institute 2 Los Alamos National Lab. 3 University of Utah Dept. of Psychiatry 4 OGI School of Science and Engineering

2. Overview Cosmology Joint work with James Ahrens at LANL Schizophrenia Joint work with Gilbert Preston at U of U River Inlet Studies Joint work with Antonio Baptista at OGI

3. VisTrails in Cosmology Cosmology The quantitative study of The Universe in its totality

4. Visualization in Cosmology Simulations are particle-based There are huge amounts of derived data Different simulations give different results

5. Visualization in Cosmology Demo

6. Visualization in Cosmology What can be done better? What was done well?

7. Visualization in Cosmology What can be done better? More intuitive control over data exploration processes More integrated interaction capabilities What was done well? Scientists are exposed to their data in a new way New questions were asked about the structure of their data

8. VisTrails in Schizophrenia Collaboration with Dr. Gilbert Preston MD Studying the effects of magnetic stimulation of the brain Hugely multi-modal study

9. VisTrails in Schizophrenia Multi-modal study EEG MEG MRI Genetics Huge amount of data Approx. 300 GB of raw data per person 1400 people

10. VisTrails in Schizophrenia A simple visualization tool is not enough Signal processing is important to the study

11. VisTrails in Schizophrenia Derived products are often more insightful than raw data

12. VisTrails in Schizophrenia Always look for new and better ways to visualize data.

13. VisTrails in Schizophrenia Signal Processing Demo

14. VisTrails in Schizophrenia MRI Processing Doctors are used to seeing things a certain way Visualization aims to be able to look at more data at one time

15. VisTrails in Schizophrenia MRIs are stored as regular volumetric grids. What can we do to add to the visualization? VisTrails Demo

16. Visualization in Schizophrenia What can be done better? What was done well?

17. Visualization in Schizophrenia What can be done better? More intuitive control over data exploration processes More integrated interaction capabilities What was done well? Multi-modal integration can be controlled from a single workflow New methods of visualization were used to better describe data products

18. VisTrails in Oregon Collaboration with Antonio Baptista from OGI Visualization of time- based, peta-scale data

19. VisTrails in Oregon VisTrails demo

20. VisTrails in Oregon Interaction with scientists is more important than the visualization alone Scientists need to be able to see an advantage in order to use a new visualization method

21. VisTrails in Oregon Many people using the system concurrently DB backend must deal with simultaneous transaction