Part 1 : Information Visualisation

Question 1

Information Visualisation

Answer 1

• Has emerged over the last 20 years.
• Driven by the volumes of data and the accessibility of big data.
• Characterised by large quantities of data.

Question 2

Simple Graphs

Answer 2

• Scatter Plot
• Scatter Plot Matrix
• Histogram
• Box Plot
• Surface, 3D/4D Data

Question 3

Information Visualisation, what can you vary?

Answer 3

• Colour/Colour Maps
• Size/Contour Width
• Shape/Line Stroke
• Location (2D)
• Transparency

Question 4

Napoleon’s Disastrous Russian Campaign (1812)

Answer 4

Six Dimensions of Data.

• Number of Napoleon’s troops
• Direction
• Distance
• Temperature
• Location: Longitude and Latitude
• Dates

Question 5

Lie Factor (LF)

Answer 5

LF = size of effect in visualisation / size of effect in data

• LF > 1 → over stating
• LF < 1 → under stating
• 2 ≤ LF ≤ 5 is common