HDDVis: An Interactive Tool for High Dimensional Data Visualization

1
HDDVis An Interactive Tool for High
DimensionalData Visualization

• by
• Mingyue Tan
• April 21st, 2004

2
Domain Task

• To visualize High Dimensional LABELED Data
• Labeled Data ?
• - a collection of elements that are drawn from
  disjointed clusters

3
Challenges

• Two demands
• - to convey the overall structure
• - to reflect the inter-cluster and
  intra-cluster relationships
• Current implementations
• - no interaction
• - not very accessible

4
Solution-infovis techniques

• Dimensionality Reduction with linear
  transformations
• - selection highlighting
• Parallel Coordinates scatter plots
• - brush link
• Query data values

5

• 64-dimensional Handwritten digits (0, 4, 6)
• 1140 (380 x3) samples

6
(No Transcript)
7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10

• 320- dimensional Handwritten digits
• 390 samples (39 for each digit)

11
(No Transcript)
12
(No Transcript)
13
Evaluation Future Work

• Strong Points
• multiple graphical representations
• many interactions
• extensibility

• Weakness
• Points in brush link not shown in main window
• Interactively add remove points
• - on graph
• - in value table

14
Reference

• 1 Y. Koren and L. Carmel, Visualization of
  Labeled Data Using Linear Transformations", Proc.
  IEEE Information Visualization (InfoVis?3), IEEE,
  pp.121-128, 2003.
• 2 J. conti, Brush and Link Visualization Tool
  http//www.mathworks.com/matlabcentral/fileexchang
  e/