Skip to main content

Carlea Holl-Jensen||


Yalcin, A., Elmqvist, N., Bederson, B. (October 2015)
Evaluating Multi-Column Bar Charts and Treemaps for Dense Visualization of Sorted Numeric Data
Under review

A single column bar chart can effectively visualize a sorted and labeled list of numeric records, such as salaries per employee. However, its height limits the number of visible records. As the number of records increase, scrolling requires interaction to see an overview, and using shorter bars hinders observing individual records. For dense visualization of sorted numeric data, we consider two multi-column bar chart designs, wrapped bars and piled bars, in addition to treemaps, a space-filling design that is commonly used to scale in the number of records. We evaluate their design characteristics and graphical perception performance by crowdsourcing under comparison, ranking and overview tasks. Our results suggest that multi-column designs can outperform the space-filling treemap design to show more records for comparison and overview tasks with training.

Graph Visualization Screenshot

Graph Visualization
More information

Tech Reports
Video Reports
Annual Symposium

Seminars + Events
HCIL Seminar Series
Annual Symposium
HCIL Service Grants
Events Archives
HCIL Conference Travel Award
Job Openings
For the Press
HCIL Overview
Become a Member
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
Ph.D. Alumni
Past Members
Research Areas
Design Process
Digital Libraries
Physical Devices
Public Access
Research Histories
Faculty Listed by Research
Project Highlights
Project Screenshots
Publications and TRs
Studying HCI
Masters in HCI
PhD in HCI
Visiting Scholars
Class Websites
Sponsor our Research
Sponsor our Annual Symposium
Active Sponsorship
Industrial Visitors