Lecture 3

Question 1

Types of visualization tools

Answer 1

Specific

General

Question 2

Specific visualization tool definition

Answer 2

A specific visualization tool is a visualization tool that is defined for a well defined context where user has very little control

Question 3

General visualization tool

Answer 3

It is a flexible tool that users have several choices to make and can handle different kinds of data.
Ineffective choices of the user can lead to a poor design.

Question 4

Task absraction

Answer 4

We are moving from the domain to the task, we are trying to know how the user view the tasks.
Does he want to compare ?
Does he want to contrast?
In other words goal

Question 5

If a user want to identify good movies

Answer 5

Domain will be general population, movie enthusiasts
Data and task abstraction will be:
Task:
find high scoring movie

Data:
combine audience and critic ratings

Question 6

See page 13

Answer 6

true

Question 7

Three levels of actions for which visualization tool can be used

Answer 7

*High-level action (analyze)
*Middle-level action : search (lookup, locate , browse , explore)
Low level actions: query (استعلام)
Identify one target (min, max, distribution..)
Compare some targets
summarize all targets ( dependencies, correlations,…. )

Question 8

The highest level of action is analyze

Answer 8

Analyze is made up from consume and produce.

Question 9

Analyze consume is made up from:

Answer 9

Discover
Present
Enjoy
discover new information, analyze information to further understand, simply enjoy visualizing data of interest

Question 10

Analyze produce is made up from

Answer 10

Annotate , Record , Derive.

Consisting of generating new information rather than consuming existing material

Question 11

In the search if we have a location and target known then we are looking up in search

Answer 11

true (lookup for a word in a dictionary)

Question 12

In the search if we have location known and target unknown then we are browsing

Answer 12

true ( items on shelves)

Question 13

In the search if we have location unknown and target known) then we are locating

Answer 13

true ( find out where a specific target is )

keys in your house for example

Question 14

in the search if we have location unknown and target unknown then we are exploring

Answer 14

true ,
search for characteristics without considering a certain location .
Exploring a nice picnic spot in the city

Question 15

In the query identify

Answer 15

Identify a single target

Typically identify characteristics of one or several targets given by look up or locate

Question 16

In the query compare

Answer 16

compare multiple targets, usually more complex than identify

Question 17

In the query summarize

Answer 17

Provide a comprehensive view

Question 18

Targets represent aspects of data that is of interest to the user

Answer 18

Example
Trends(increase, decrease)
Outliers
Distribution
Min and Max
Correlation
Dependency 
similarity
Network Data

Question 19

Now How

Answer 19

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