Temporal Navigation

Small Multiples

Easy to analyze one time point

Visual tracking is difficult

Temporal Navigation

Animation & Time Slider

Temporal changes apparent

Low-level visual tracking is difficult

Why?

1. Visual Instability

2. Divided Attention

How can temporal navigation be designed to better support low-level exploration?

DimpVis

Touch interaction

Hint paths visualize temporal changes

Navigate time by direct interaction with the data item

Object-Centric Temporal Navigation

Object-Centric Temporal Navigation

Simultaneous navigation and visual analysis of the time dimension, while focusing on the data item of interest.

Object-Centric Temporal Navigation

Simultaneous navigation and visual analysis of the time dimension, while focusing on the data item of interest.

The data item becomes the temporal navigation control.

Timeline Navigation

Flashlight Navigation

Trade offs

Trade offs

Time line

Temporal trend legibility and navigation along data trajectory

Less navigation flexibility

Flashlight

Fast and flexible navigation

Temporal trend not apparent

Trade offs

Time line

Temporal trend legibility and navigation along data trajectory

Less navigation flexibility

Flashlight

Fast and flexible navigation

Temporal trend not apparent

Trade offs

Time line

Temporal trend legibility and navigation along data trajectory

Less navigation flexibility

Flashlight

Fast and flexible navigation

Temporal trend not apparent

Evaluation

How does the performance of DimpVis compare to the small multiples and time slider techniques when used to answer spatial queries?

Measurements

Task completion time (seconds)

Task error rate (correct answers/submitted answers)

Subjective ratings (5-point Likert)

Completion Times

Scatter plot

Completion Times

Scatter plot

Subjective Ratings

Scatter plot

Participant Feedback

DimpVis Scatter plot

Hint paths aligned with dragging direction

Provide flashlight & timeline navigation

Future Work

Multi-attribute hint paths and manipulation

Additional evaluation

Application to data storytelling