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Lecture 10: Interaction and Analysis Intro. October 12, 2010 COMP 150-12 Topics in Visual Analytics. The Number Scrabble Game!. The Number Scrabble Game!. Discussion. What worked? What did you miss? Is this a good visualization?. Lecture Outline. Decision Matrix (.

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lecture 10 interaction and analysis intro

Lecture 10:Interaction and AnalysisIntro

October 12, 2010

COMP 150-12Topics in Visual Analytics

the number scrabble game
The Number Scrabble Game!

The Number Scrabble Game!

discussion
Discussion
  • What worked?
  • What did you miss?
  • Is this a good visualization?
lecture outline
Lecture Outline

Decision Matrix (

  • Interaction and Analysis
    • Definition
    • Interaction with data and problem
      • Relationship between interaction and problem-solving
      • Types of analysis problems
      • Analytical methods
    • Interaction with visual interfaces
      • Basic interaction types
      • Sample interaction methods
    • Interaction with other people
      • Collaborative analysis (CSCW)
    • Can interaction exist without visualization?
      • Design flow of interactive visualization tools
define interaction
Define Interaction
  • Methods by which humans create knowledge through the manipulation of an interface.
    • Low level: refers to the set of controls provided to the user to manipulate an interface and the relationship between the user and that interface.
    • High level: interplay between human and problem space. It is a cognitive act that is enabled by computational tools, but it does not take place exclusively within them (or through the use of a single tool).
interaction and analysis
Interaction and Analysis
  • Growing belief that (interaction == analysis)
    • Interaction is an externalization of thought
    • Known as the “analytic discourse”
      • Knowledge is constructed, tested, refined, and shared through the interactive manipulation of a visual interface.
interaction as a reasoning aid
Interaction as a Reasoning Aid
  • The general ideas:
    • “Interaction is the inquiry and the Analysis!”
    • Interaction is situated in the context of some problem or goal-directed activity.
      • In the process of inquiry, users’ contexts help them identify relevant concepts and linkthem into appropriate structures.
      • The more ways a user can ‘touch’ their data (by changing their form or exploring them from different perspectives), the more insight will accumulate.
      • Brings together background contexts and current observations.
      • Known as “situated cognition”
interaction as distributed cognition tower of hanoi
Interaction as Distributed Cognition:Tower of Hanoi

1) only one disk can be transferred at a time; 2) a disk can only be

transferred to a pole on which it will be the largest; 3) only the largest

disk on a pole can be transferred to another pole.

how do you play tetris
How do you play Tetris?

http://www.youtube.com/watch?v=vZ7-DKCY2Mo

epistemic action
Epistemic Action
  • Different from “pragmatic actions”
    • Defined as interactions that moves a person and his analysis closer to the desired destination.
  • Epistemic actions
    • Enable humans to make use of environmental structures or to create structures in the environment that link with internal structures.
    • The purpose of some actions is not for the effect they have on the environment but for the effect they have on the humans.
problems for evaluation
Problems for Evaluation
  • In the HCI community, a good interface is often judged by accuracyand speedof completing a task.
  • In the context of epistemic actions, do those metrics make sense?
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