Thank you for coming here! - PowerPoint PPT Presentation

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Thank you for coming here!

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Thank you for coming here! Purpose of Experiment. Compare two visualization systems. ... Scientists measured the sepal length, sepal width, ... – PowerPoint PPT presentation

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Title: Thank you for coming here!


1
Thank you for coming here!
2
Purpose of Experiment
  • Compare two visualization systems.
  • You will play with one of them.

3
What will you do?
  • Learn a multidimensional visualization system
  • Use it to find features of a data set and record
    your result
  • A quick after-experiment feedback.

4
Schedule
  • First, I will present ...
  • Multidimensional data
  • Parallel Coordinates
  • Brushing
  • Feature finding
  • Introduce the visualization system

5
Schedule
  • Then, You will do ...
  • Experiment
  • -Find features of a given data set using
    the visualization system
  • -Record the features you find
  • Fill feedback form.

6
Outline
  • Multidimensional Data
  • How to represent multidimensional data
  • Parallel Coordinates
  • Brushing Operation
  • Feature Finding

7
Multidimensional DataExample Iris Data
Scientists measured the sepal length, sepal
width, petal length, petal width of many kinds
of iris...
8
Multidimensional DataExample Iris Data
9
Outline
  • Multidimensional Data
  • How to represent multidimensional data
  • Parallel Coordinates
  • Brushing Operation
  • Feature Finding

10
Parallel Coordinates One-Dimensional Data
(1.6)
2
1
11
Parallel Coordinates 4-Dimensional Iris Data Set
12
3.5
5.1
1.4
0.2
13
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14
Outline
  • Multidimensional Data
  • How to represent multidimensional data
  • Parallel Coordinates
  • Brushing Operation
  • Feature Finding

15
Brushing
Brushing - Highlighting part of the data items to
distinguish them from the other data items.
16
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17
Feature Finding
Feature - Anything you find from the data set.
Cluster - A group of data items that are similar
in all dimensions. Outlier - A data item that is
similar to FEW or No other data items.
18
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19
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20
Other features
You can record anything else you find with the
help of the visualization system.
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