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    1. 1. Medical Knowledge Discovery Through Information Visualization Ben Shneiderman [email_address] Founding Director (1983-2000), Human-Computer Interaction Lab Professor, Department of Computer Science Member, Institutes for Advanced Computer Studies & Systems Research University of Maryland College Park, MD 20742
    2. 2. Interdisciplinary research community - Computer Science & Psychology - Information Studies & Education (www.cs.umd.edu/hcil)
    3. 3. Design Issues <ul><li>Input devices & strategies </li></ul><ul><ul><li>Keyboards, pointing devices, voice </li></ul></ul><ul><ul><li>Direct manipulation </li></ul></ul><ul><ul><li>Menus, forms, commands </li></ul></ul><ul><li>Output devices & formats </li></ul><ul><ul><li>Screens, windows, color, sound </li></ul></ul><ul><ul><li>Text, tables, graphics </li></ul></ul><ul><ul><li>Instructions, messages, help </li></ul></ul><ul><li>Collaboration & communities </li></ul><ul><li>Manuals, tutorials, training </li></ul>www.awl.com/DTUI
    4. 4. U.S. Library of Congress <ul><li>Scholars, Journalists, Citizens </li></ul><ul><li>Teachers, Students </li></ul>
    5. 5. Visible Human Explorer (NLM) <ul><li>Doctors </li></ul><ul><li>Surgeons </li></ul><ul><li>Researchers </li></ul><ul><li>Students </li></ul>
    6. 6. NASA Environmental Data <ul><li>Scientists </li></ul><ul><li>Farmers </li></ul><ul><li>Land planners </li></ul><ul><li>Students </li></ul>
    7. 7. NSF Digital Government Initiative <ul><li>Find what you need </li></ul><ul><li>Understand what you Find </li></ul><ul><li>Census, </li></ul><ul><li>NCHS, </li></ul><ul><li>BLS, EIA, </li></ul><ul><li>NASS, SSA </li></ul>www.ils.unc.edu/govstat/
    8. 8. <ul><ul><ul><li>Leonardo’s Laptop </li></ul></ul></ul><ul><li>E-learning: The new education </li></ul><ul><li>E-business: The new commerce </li></ul><ul><li>E-healthcare: The new medicine </li></ul><ul><li>E-government: The new politics </li></ul><ul><li>Mega-creativity </li></ul><ul><li>Grander Goals & The Next Leonardo </li></ul>www.cs.umd.edu/hcil/newcomputing
    9. 9. Using Vision to Think <ul><li>Visual bandwidth is enormous </li></ul><ul><ul><li>Human perceptual skills are remarkable </li></ul></ul><ul><ul><ul><li>Trend, cluster, gap, outlier... </li></ul></ul></ul><ul><ul><ul><li>Color, size, shape, proximity... </li></ul></ul></ul><ul><ul><li>Human image storage is fast and vast </li></ul></ul><ul><li>Opportunities </li></ul><ul><ul><li>Spatial layouts & coordination </li></ul></ul><ul><ul><li>Information visualization </li></ul></ul><ul><ul><li>Scientific visualization & simulation </li></ul></ul><ul><ul><li>Telepresence & augmented reality </li></ul></ul><ul><ul><li>Virtual environments </li></ul></ul>
    10. 10. Information Visualization: US Research Centers <ul><li>Xerox PARC </li></ul><ul><ul><li>3-D cone trees, perspective wall, spiral calendar </li></ul></ul><ul><ul><li>table lens, hyperbolic trees, document lens </li></ul></ul><ul><li>Univ. of Maryland </li></ul><ul><ul><li>dynamic queries, range sliders, starfields, treemaps, timeboxes, zoombars </li></ul></ul><ul><ul><li>tight coupling, dynamic pruning, lifelines </li></ul></ul><ul><li>IBM, Microsoft, AT&T </li></ul><ul><li>Georgia Tech, MIT Media Lab </li></ul><ul><li>Univ. of Wisconsin, Minnesota, Calif-Berkeley, CMU </li></ul><ul><li>Pacific Northwest National Labs </li></ul>
    11. 13. Information Visualization: Mantra <ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul><ul><li>Overview, zoom & filter, details-on-demand </li></ul>
    12. 14. Information Visualization: Data Types <ul><li>1-D Linear Document Lens, SeeSoft, Info Mural, Value Bars </li></ul><ul><li>2-D Map GIS, ArcView, PageMaker, Medical imagery </li></ul><ul><li>3-D World CAD, Medical, Molecules, Architecture </li></ul><ul><li>Multi-Var Parallel Coordinates, Spotfire, XGobi, Visage, Influence Explorer, TableLens, DEVise </li></ul><ul><li>Temporal Perspective Wall, LifeLines, Lifestreams, Project Managers, DataSpiral </li></ul><ul><li>Tree Cone/Cam/Hyperbolic, TreeBrowser, Treemap </li></ul><ul><li>Network Netmap, netViz, SeeNet, Butterfly, Multi-trees </li></ul>(Online Library of Information Visualization Environments) otal.umd.edu/Olive InfoViz SciViz .
    13. 15. Temporal Data: TimeSearcher 1.3 <ul><li>Time series </li></ul><ul><ul><li>Stocks </li></ul></ul><ul><ul><li>Weather </li></ul></ul><ul><ul><li>Genes </li></ul></ul><ul><li>User-specified patterns </li></ul><ul><li>Rapid search </li></ul>
    14. 16. Temporal Data: TimeSearcher 2.0 <ul><li>Long Time series (>10,000 time points) </li></ul><ul><li>Multiple variables </li></ul><ul><li>Controlled precision in match (Linear, offset, noise, amplitude) </li></ul>
    15. 17. LifeLines: Patient Histories
    16. 18. Temporal Data (Categorical): PatternFinder www.cs.umd.edu/hcil/patternfinder
    17. 19. Patient History Search: WHC- PatternFinder www.cs.umd.edu/hcil/patternfinder
    18. 20. Treemap: Stock market, clustered by industry
    19. 21. www.hivegroup.com Treemap: Newsmap
    20. 22. Treemap: Gene Ontology http://www.cs.umd.edu/hcil/treemap/
    21. 23. www.hivegroup.com Treemap: Product catalogs
    22. 25. Treemap: WHC Emergency Room (6304 patients in Jan2006) Group by Admissions/MF, size by service time, color by age
    23. 26. Treemap: WHC Emergency Room (6304 patients in Jan2006) (only those service time >12 hours) Group by Admissions/MF, size by service time, color by age
    24. 27. Multi-V: Hierarchical Clustering Explorer www.cs.umd.edu/hcil/hce/ “ HCE enabled us to find important clusters that we didn’t know about.” - a user
    25. 28. 24 th Annual Symposium May 31-June 1, 2007 www.cs.umd.edu/hcil
    26. 29. For More Information <ul><li>Visit the HCIL website for 350 papers & info on videos www.cs.umd.edu/hcil </li></ul><ul><li>Conferences & resources: www.infovis.org </li></ul><ul><li>See Chapter 14 on Info Visualization Shneiderman, B. and Plaisant, C., Designing the User Interface: Strategies for Effective Human-Computer Interaction: Fourth Edition (April 2004) www.awl.com/DTUI </li></ul><ul><li>Edited Collections: Card, S., Mackinlay, J., and Shneiderman, B. (1999) Readings in Information Visualization: Using Vision to Think Bederson, B. and Shneiderman, B. (2003) The Craft of Information Visualization: Readings and Reflections </li></ul>
    27. 30. For More Information <ul><li>Treemaps </li></ul><ul><ul><li>HiveGroup: www.hivegroup.com </li></ul></ul><ul><ul><li>Smartmoney: www.smartmoney.com/marketmap </li></ul></ul><ul><ul><li>HCIL Treemap 4.0: www.cs.umd.edu/hcil/treemap </li></ul></ul><ul><li>Spotfire: www.spotfire.com </li></ul><ul><li>TimeSearcher : www.cs.umd.edu/hcil/timesearcher </li></ul><ul><li>Hierarchical Clustering Explorer: www.cs.umd.edu/hcil/hce </li></ul>

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