User Study on Keywords Summaries (a.k.a. Word Clouds)
Goal: Test effectiveness of alternate visual representations for keyword summaries.
Keyword Summaries: A set of words or phrases extracted from text collections often with the goal of representing the overall content of the text. Usually associated to a importance metric like frequency.
[Word + Value]
The design space is divided in 2 basic elements:
- Layout: How the words are arranged on the screen
- Mark: How each word and its value is represented visually
- Word as value mark: In this case the value of each word is mapped to features of the word itself like color and size.
- Additional mark for value: In this case the value of each mark is mapped to features of an additional mark associated with each word. E.g circle area, bar length