Past Meetup

DDV - Sheep and Geospatial Analysis

This Meetup is past

30 people went

Every 3 months on the 2nd Thursday

Applied Information Sciences

2681 Commons Blvd · Beavercreek

How to find us

Behind the Mall at Fairfield Commons, in the Acropolis office center

Location image of event venue


Many thanks to Evelyn Boettcher and Sean McCarty for volunteering to speak at our November event! This will be a lunchtime meetup in Beavercreek at Applied Information Sciences.

- 11:30am: Pizza, Sponsors, and Announcements

- 12:00pm: Resolve Your Sheep - Visualizations showcasing data and insights are meant to be shown to others and it's natural to take for granted that if we can see it others can too. But, ...have you ever noticed/said/heard, "Wow, this graph looked so much better on my screen." Why is that? Why can I see it and my big boss cannot? Two things come to play: the human eye and the display. The human eye's ability to resolve ("see") an object depends on the object's contrast with the background and the contrast spatial frequency which is represented by a Contrast Threshold Function (CTF). One's personal CTF will also change in time, unfortunately for the worse as you get older. Once your graph is displayed, the medium that it is being displayed on or through will add to the CTF. This spatial frequency response of the display system tends to play a large part in that blurry graph/font. Evelyn Boettcher spent 4 years with the U.S. Army Human Performance group modeling how well Soldier can resolve their targets. The goal of this talk is to make one cognizant how spatial frequency affects the eye's ability to see, so that your sheep can be resolved by your audience.

- 12:30pm: Geospatial Analysis of the Texas Department of Licensing & Regulation Open Data Set - Sean McCarty will present a Geospatial Analysis of the Texas Department of Licensing and Regulation Open Data set. Sean is an image & signal processing engineer that has experience implementing synthetic aperture radar image formation, signal processing, and real-time communication waveform generation solutions.

- 1:00pm: End

The Dayton Data Visualization group will meet quarterly unless I get enough volunteers to make it happen more frequently. Please volunteer to share a topic with the group! What makes a good presentation topic for DDV? Here are some ideas:

- Case Studies - Show us how you made a cool visualization or infographic

- Development Tips - Show us how to use a cool new tool or framework

- Benchmarks - Comparisons between tools or frameworks

- Data Mining - Show us how you mine/retrieve data to use in your visualizations

- Optimization - Show us how you optimize your visualizations for performance on the web and mobile devices

Presentations are only twenty minutes long. This is to lower the barrier of entry for new speakers and to make the talks less of a time commitment from the speakers (and audience). Keep them short, sweet, and specific.


Map to Applied Information Sciences:,+Beavercreek,+OH+45431/@39.76859,-84.060064,19z/