Midterm 1 Flashcards

1
Q

Analytics

A

Information collection, integration, and analysis

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2
Q

Modern Buisness Analytics

A

Data-Driven, Math heavy, computerized

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3
Q

SciVis

A

Scientific Visualization

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4
Q

InfoVis

A

Information Visualization

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5
Q

VAST

A

Visual analytics science and technology

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6
Q

Which data type falls under visualizations

A

Homogenous data type/ well-structured data

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7
Q

Which data type falls under visual analytics

A

Heterogenous data types/ messy data

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8
Q

Purpose of visualizations

A

Specific tasks related to the understanding of data

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9
Q

Purpose of visual analytics

A

focuses on gaining insights by combining the understanding of data from different perspectives

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10
Q

Cognition

A

Memory, reasoning, encoding

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11
Q

External cognition

A

external artifacts that help/amplify cognition

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12
Q

Benefits of Interactive Visualization

A
  1. Less effort
  2. Enhanced recognition
  3. Shifting level of cognition
  4. More resources
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13
Q

1 Dimensional data types

A

List, menu items

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14
Q

2 dimensional data types

A

table, spread sheet

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15
Q

3 dimensional data ttpes

A

3D Models

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16
Q

Multi-dimensional data types

A

User profiles

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17
Q

Temporal data type

A

stock price

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18
Q

tree data type

A

documents on a flash drive

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19
Q

network data type

A

facebook friends

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20
Q

text data type

A

online document

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21
Q

categorical data types

A

gender, race, eye color

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22
Q

Eye

A

a sensor to capture external stimuli

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23
Q

Brain

A

A machine to store and process capture information

24
Q

True or false the brain has limited cognitive capacities

A

True

25
Q

Visual Illusion

A

The result of interpretations of the retina image by our brain influenced by prior knowledge and experience

26
Q

Visual Perception

A

Based on sampled visual information

27
Q

How do we decide what to “see”?

A

Task relevance, decision making process is optimized and hardwired in our brain

28
Q

Visual Search

A

Hardwired or learned interpretation of visual images

29
Q

What is our brain better at noticing, differences in luminance of absolute value of luminance?

A

Difference in luminance

30
Q

Consequences in Visualization

A

Errors in reading quantitative measures reflected in images, sensitive to object rendering, edge enhancement

31
Q

True or False: Color can be affected by surrounding colors

A

True

32
Q

Opponent Process Theory

A

Information from different types of sensors is processed to deliver perceived color and luminance

33
Q

What two types of photoreceptors are on the retina?

A

Cone and Rods

34
Q

Three type of Cone Receptors

A

short, middle, and long wavelength

35
Q

True or False: Black and White is the easiest for people

A

True

36
Q

True or false: background colors should be less saturated

A

True

37
Q

True or false: Small areas of interest should be highly saturated color

A

True

38
Q

Four Color Theorem

A

Try to use only four unique colors

39
Q

What are the four unique hues?

A

Red
Green
Yellow
Blue

40
Q

What are the six basic colors?

A

Black
White
Red
Green
Yellow
Blue

41
Q

Color Keys

A

Ordering colors according to their luminance

42
Q

True or false: Color cannot change meaning depending on the culture

A

false

43
Q

Visual Perception

A

Based on sampled visual information on a need-to-know basis

44
Q

Example of physical action in optimization of resource allocation

A

Head movement

45
Q

Example of cognitive action in optimization of resource allocation

A

Relying on working memory to retain visual images

46
Q

what is the brain better at catching changes in luminance or absolute value of luminance?

A

changes in luminance

47
Q

Pop-out effect

A

quick, eye-catching

48
Q

What are the prominent pop-out channels?

A
  • Form (orientation/size)
    – Color
    – Simple motion/blinking
    – Spatial, stereo depth, shading, position
49
Q

Pop-out Conjunctions

A

– Color and motion
– Color and position
– Shape and position

50
Q

Visibility enhancement should always be…

A

Asymmetric

51
Q

Gestalt Laws

A
  • Proximity
    – Similarity
    – Continuity
    – Symmetry
    – Closure
    – Relative Size
    – Figure and Ground
52
Q

What are the spatial perception types of cues?

A

pictorial Cues, Non-pictorial Cues

53
Q

Occlusion

A

Objects closer to us occlude
those farther away.

54
Q

Aerial haze

A

Distant objects are blurrier.

55
Q

Motion Parallax

A

Different retina images due to the movement of the viewpoint.

56
Q

Binocular disparity

A

Different retina images on left and right eyes.