Marrying Spatialization and Traditional Cartography

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Marrying Spatialization and Traditional
Cartography

• Geography 200B
• March 12, 2003
• Presented by Kirk Goldsberry

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Introduction

• Seek Patterns or Clusters in UN AIDS data
• Using Multi-Dimensional Scaling and Choropleth
  Maps
• Analyze results using GIS
• Compare Spatialized Results with Cartographic
  Visualizations

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Raw Data

• UNAIDS
• Global Report of June 2000
• Country Wide Data
• Includes about 60 attributes
• Record and Attribute Reduction

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Getting ready for MDS

• For Each Attribute (8)
• Rank Countries 1 through 38
• Rankings based on Desirability
• For example lowest number of deaths rank 1,
  highest number of deaths 38
• Sum Rankings total score

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MDS Coordinates

• Join X,Y,Z Coordinates With Existing dbf
  containing refined spatial data
• Created a 3d theme in ArcView using the MDS
  Coordinates
• Allowed Comparisons of Spatializations and more
  traditional Maps

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2 kinds of Visualization

• 3 Dimensional MDS sourced space
• Traditional Cartographic Maps
• Choropleth
• Proportional Symbol
• Combinations

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Evaluate Cooperation

• Goal was to investigate the cooperation of these
  two visualizations
• Agreements
• Disagreements
• Does the marriage promote knowledge discovery?

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Evaluate Cooperation

• Another Goal was to search for and define
  patterns exposed by the MDS
• Does Toblers First Law apply to this artificial
  space?

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Results

• MDS and Traditional Methods Expose Similar
  Relationships
• MDS Exposes Strong Similarities between
  non-proximate entities

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Inner Cluster
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Conclusions

• MDS Spatialization could serve as a functional
  partner to traditional methods
• They work well together
• Different Legitimate Patterns are exposed using
  both techniques

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Questions or Comments