Skip to main content


Filippova, D., Lee, J., Olea, A., VanDaniker, M., Wongsuphasawat, K. (May 2008)
Exploring Clusters in Geospatial Datasets

Analyzing multivariate geospatial data is a non-trivial task. Geographical location is a variable in itself that might be correlated with other fields in the data. When looking at the variable distribution in a geographical region, users often need to identify areas where the variable is overrepresented. We call such local maxima ”hotspots” and present Fervor: a hotspot explorer. Fervor visualizes hotspots as a continuous heat map and offers a range of tools to investigate relationships within the underlying data. We adopted and expanded the rank-by-feature framework [12] to quantify the strength of relationships between the different fields describing the data. In this paper, we use Fervor to investigate traffic incident data in the state of Maryland.

Restaurant Food Safety Inspections: Digital disclosure with a nationally standardized database Screenshot

Restaurant Food Safety Inspections
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