It’s time for another Portland Data Visualization Meetup! The last one occurred on Thurs, April 29. We’ll have three to four main presentations and networking time. Webtrends will again graciously host us on their top floor.

Current speakers for Data Viz #4:
1. Periscopic will present two pieces of data visualization they've done.

The first is Vote Smart - a new visualization & voter's assistant tool that uses data from Project Vote Smart, and Open Secrets. Designed to help you find out which candidates are most like you. 10 min presentation plus 15-20 minutes for questions.

State of the Polar Bear - visual designs for a project that is still in development. Half infographic movie, and half exploratory visualization. Designed to raise awareness about CO2 levels and how that affects polar bears and arctic sea ice. 5-10 min presentation and 10-15 mins for questions

2. Aaron Parecki and Amber Case will present new data from a project they’ve been working on dealing with GPS and SMS data called Geoloqi.com. They may also present a visualization of wiki commits to cyborganthropology.com over time.

3. A number of Portland Data Viz group members recently attended a Tufte lecture, which most everyone found to be very useful! Joe, a Portland Data Viz member, enjoyed the blot maps presented by Tufte. He will give a very short presentation on them. It will include a guide on how to build your own from US Geographic boundary files, as well as a discussion on Tufte’s criticism of this data visualization method.

Who Should Go?
The event is open to everyone interested in or working in the field of data visualization. This means designers, programmers, information architects, data miners, anthropologists, ect. We’re expecting a similar amount of people to last time (probably around 20-30 people).

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