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Visualiseerimine

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Võimalusi info viusualiseerimiseks ja süstematiseerimiseks.

Võimalusi info viusualiseerimiseks ja süstematiseerimiseks.

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Transcript

  • 1. Tools for Knowledge Construction and Visualisation
      • Martin Sillaots
      • 19 April 2006
  • 2. Goal of presentation
    • To give overview of knowledge (information) construction and exploration methods
    • To give ideas how to improve effectiveness of learning (shorter learning time, deeper understanding of relations ...)
    • To collect additional ideas and feedback
  • 3. Social-Constructivist learning theory
    • Knowledge is actively constructed by learner
    • Learning must be related with actual and meaningful content
    • Learning is more effective in collaboration with co-students
  • 4. Construction
    • Seeing relations
    • Sorting
    • Seeing differences
    • Comparing
    • Systematising
    • Restructuring
  • 5. Construction enables
    • Get overview of information
    • Browse or navigate in information
    • Focus on details
    • Select details
    • Change, order, create relations
      • To see details in a pig picture
  • 6. Visualisation
    • Visualisation – define information with colour, size, position, relations
    • Why it is important to visualise information?
    • Students learning styles are different
    • People have strong need for visualisation of information
  • 7. Learning styles
    • Visual – student like diagrams
    • Aural – student prefer listening
    • Reading /Writing – making notes
    • Kinesthetic – simulations and practice
    Perceptual preference by VARK Ref: http://www.vark-learn.com/
  • 8. Why visualisation is important? Ref: http://www.essentialmindmapping.com/WhatIsMindMapping.php
  • 9. Classification of methods
    • One-dimensional – text, list, timeline ...
    • Hierarchical – outlined list, tree, ...
    • Network – concept map ...
    • Two-dimensional – metaphor of map, matrix, ...
    • Three-dimensional
    • Multi-dimensional
    • Other metaphors – building, human body, outer space
  • 10. 1-D
    • Text mural or lens
    • Tag or keyword cloud
    • Simple list
    • Time line*
    To see details and large picture
  • 11. Mural for text presentation Ref: http://www.cc.gatech.edu/gvu/softviz/infoviz/information_mural.html
  • 12. Text Mural or lens for search
  • 13. Video DNA Ref: Dulce Ponceleon and Andreas Dieberger IBM Almaden Research Center
  • 14. Tag or keyword cloud Bigger font = most popular topic Ref: http://www.tagcloud.com/
  • 15. Hierarchical
    • Outline list
    • Tree
    • Hyperbolic tree*
    • Tree map*
    • Content map*
    Each node has a single parent node Sub-nodes can be hidden Details vs pig picture
  • 16. Outline list Structure of Multimedia course Created with MS Project
  • 17. Tree Ref: http://www.cs.umd.edu/hcil/biodiversity
  • 18. Hyperbolic tree Ref: Jörg Walter Universität Bielefeld Ref: John Lamping, Ramana Rao, and Peter Pirolli Xerox Palo Alto Research Center
  • 19. Hyperbolic tree examples
    • StarTree www.inxight.com/products/vizserver
    • Walrus - Gallery: Visualization & Navigation www.caida.org/tools/visualization/walrus/gallery1
    • BubbleBrowser www.flong.com/bubba
  • 20. Hyperbolic tree tools
    • HyperTree www.kinase.com/tools/HyperTree.html based on Java2
    • StarTree www.inxight.com/products/vizserver commercial
    • Walrus - Graph Visualization Tool www.caida.org/tools/visualization/walrus based on Java3D and
    • Additional packages iv.slis.indiana.edu/sw/index.html
  • 21. Tree map Usenet Hierarchies http://netscan.research.microsoft.com/treemap
  • 22. Concept map Inspiration http://www.inspiration.com/ What if one node have more than one parent?
  • 23. Network
    • Computer network topology
    • Concept map*
    • Gantt chart*
    • Arrow diagram (ADM)*
    • Precedence diagram (PDM)*
  • 24. Visual Thesaurus (concept map) Ref: http://www.thinkmap.com/visualthesaurus.jsp
  • 25. news.com Big Picture (concept map) http://news.com.com/The+Big+Picture/2030-12_3-5843390.html?tag=st.bp
  • 26. Cmap (concept map) Ref: http://cmap.ihmc.us/
  • 27. 2-D
    • Geographic maps - displaying data on map
    • Map metaphor (flour, city, fields)
    • Matrix
  • 28. Geographical maps Population density
  • 29. Map metaphor Colour = novelty or importance, size = popularity or capacity, position = relations Ref: hot.news.com
  • 30. City metaphor Ref: Andreas Dieberger, Emory University
  • 31. Matrix Ref: A Guide to the Project Management Body of Knowledge
  • 32. 3-D and Multi-D
    • Table lenses
    • Multidimensional scaling
    • Items are described with three or more attributes
    • Usually presented on 2 – dimensional screen with multiple sliders
  • 33. Table lenses Ref: www.inxight.com/products/sdks/tl
  • 34. Explorea Ref: Kaipainen
  • 35. Spotfire Ref: www.spotfire.com
  • 36. Time-line*
    • Single time-line*
    • Gantt chart
    • Arrow diagram (ADM)
    • Precedence diagram (PDM)
  • 37. Flash authoring system Ref: http://www.macromedia.com/
  • 38. Gantt Chart Created with MS Project
  • 39. PDM Chart Created with MS Project
  • 40. Conclusion
    • Selection of tool and method depends on user preferences
    • Using of different tools make learning process more interesting and effective
    • Its probably not possible to integrate all methods (metaphors)
    • Preparation process is longer learning process shorter
    • Give students tasks to construct knowledge
  • 41.
      • The End

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