Slide 2

Powerful tool

False sense of security?

Visualization can mislead:

Suppress orig data quality
Add information.
Loose information.
Different vis can disagree.

These are powerful tools, and create very pretty pictures, but a false sense of security exists because the pictures look so much like the reality we THINK they accurately represent. Visualizations can be very misleading, taking extreme liberties with the data, as the visualization community is well aware. They can suppress information about the original data quality, add or lose information, and different visualizations of the same data can disagree.

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