Skip to main content



HCIL-99-19

Fredrikson, A. (August 1999)
Temporal, Geographical and Categorical Aggregations Viewed through Coordinated Displays: A Case Study with Highway Incident Data (Summer Project Report)
HCIL-99-19

An information visualization display can hold a certain amount of data points before it gets crowded. One way to solve this problem with larger and larger data sets is to create aggregates. An aggregate is a group of data points that is used as summarization. The aggregates are used in the visualization instead of all the data points to simplify the display. The concept of aggregation can be used together with the Snap-Together Visualization to tightly couple and coordinate different displays. This paper presents a case study with incident data from the highways in Maryland where both aggregation and coupled displays are used. More than ten different prototypes with different kinds of aggregates have been developed and analyzed. Recommendations and advice regarding the use of aggregation will be given to people working with transportation systems, and to developers of coupled displays and visualization applications. Some general principles about aggregates found during the development process will also be presented.


[HTML


Q&A: Supporting Engagement and Peer Learning in a Classroom Setting Screenshot

Q&A: Supporting Engagement and Peer Learning in a Classroom Setting
More information

Tech Reports
Video Reports
Annual Symposium

News
Seminars + Events
Calendar
HCIL Seminar Series
Annual Symposium
HCIL Service Grants
Events Archives
Awards
HCIL Conference Travel Award
Job Openings
For the Press
HCIL Overview
Become a Member
Collaborators
Collaborating Groups + People
Academic Visitors
Join our Mailing List
Contact Us
Visit Us
HCIL Store
Give the HCIL a Hand
HCIL T-shirts for Sale
Our Lighter Side
HCIL Memories Page
Faculty/ Staff
Students
Ph.D. Alumni
Past Members
Research Areas
Communities
Design Process
Digital Libraries
Education
Physical Devices
Public Access
Visualization
Research Histories
Faculty Listed by Research
Project Highlights
Project Screenshots
Publications and TRs
Videos
Books
Products
Presentations
Studying HCI
Masters in HCI
PhD in HCI
Visiting Scholars
Class Websites
Sponsor our Research
Sponsor our Annual Symposium
Active Sponsorship
Industrial Visitors