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Maa­123.3530 ­ Visual Analysis in GIS   

18th December 2014   

Note: The question paper had to be handed back after the exam, so I am typing this up from  memory. 

 

1. What are the roles of preattentiveness, Gestalt laws and colour vision in visual  perception and how should they be taken into account in visual analysis? 

 

2. Describe the following with regards to visual analysis: 

a. Parallel coordinate Plot (PCP)  b. Self Organizing Map (SOM)  c. Re­orderable matrix 

 

3. Describe three visualization methods that can be used for analyzing spatio­temporal  data. Also describe what types of temporal phenomena can be analyzed by the  methods or what types of phenomena can they reveal. 

 

4. Explain the following terms with regards to visual analysis: 

a. Pattern  b. Insight 

c. Normalization  d. Data reduction  e. Brushing  f. Hypothesis 

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