The Beauty of Roots, a Facet demo
John Baez over at his new blog Azimuth has a post with an amazing looking fractal: the set of all roots of all polynomials with coefficients -1 or 1. Since it’s “just” a set of points, it seemed like...
View ArticleSo you want to look at a graph
Say you are given a graph and are told: "Tell me everything that is interesting about this graph". What do you do? We visualization folks like to believe that good pictures show much of what is...
View ArticleSo you want to look at a graph, part 1
This series of posts is a tour through of the design space of graph visualization. As I promised, I will do my best to objectively justify as many visualization decisions as I can. This means we will...
View ArticleHCL color space blues
I’ve been playing around with the HCL color space. HCL, if you’ve never heard of it before, is a color space that tries to combine the advantages of perceptual uniformity of Luv, and the simplicity of...
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So you want to look at a graph, part 2
This series of posts is a thorough examination of the design space of graph visualization (Intro, part 1). In the previous post, we talked about graphs and their properties. We will now talk about...
View ArticleA Javascript question on performance vs. convenience
Here’s a Javascript-specific software engineering problem I’m considering within Facet. I’m trying to decide how (or even whether) to approach type-checking in the API, and I’m looking for input.Since...
View ArticleSo you want to look at a graph, part 3
This series of posts is a tour of the design space of graph visualization. I’ve written about graphs and their properties, and how the encoding of data into a visual representation is crucial. In this...
View ArticleVisWeek 2012, Sunday
At this point, VisWeek 2012 is just about halfway done, and there’s tons to write about, but I’ll try to keep these short by sticking to one day at a time. VisWeek now runs four parallel tracks for the...
View ArticleVisWeek 2012, Monday and Tuesday
This continues the set of notes I started on the previous post.MondayIt turns out I spent most of Monday hanging out on hallways and chatting with people, so I did not really see much of the sessions....
View ArticleA trivial Python hack to tweet from the command line
One of the annoying things about Twitter is that sometimes I want to tweet something, but I don’t want to actually read anything from my feed (because I’ll surely get distracted). So I wrote this...
View ArticleWindow Seat
What does it look like when you turn a video of a 5-hour flight into a single image?I finally put together a web page showing the results of a fun hack Bill Cheswick and I worked on in 2011. Bill...
View ArticleVoting in the MLB Hall of Fame
Here’s a visualization of the MLB Hall of Fame trajectories my friend Kenny Shirley and I created using D3, R and a bunch of elbow grease.This was a whole lot of fun to create (the whole thing from...
View ArticleNanocubes
Come look at my new project, nanocubes, in collaboration with my co-workers Jim Klosowski and Lauro Lins. Nanocubes are in-memory datacubes for spatiotemporal data. They enable super-fast interactive,...
View ArticleNanocubes on Github
Nanocubes are now on Github!You’ll probably want the 1.0 branch, which is the version we’ve been demoing. The master branch includes a ton of new goodies that we’ll talk about eventually (although...
View ArticleVIS 2013: Hello there
Good morning from Atlanta! This week holds the largest academic visualization conference of the year, with about 1,000 people all interested in understanding and creating meaningful and beautiful...
View ArticleHelp us advance visualization
Hi!Gordon Kindlmann and I are running a simple user study about images and color. It takes less than five minutes, and all you need is a web browser (preferably not on a handheld). We would love it if...
View ArticleAlgebraic visualization design, new job
My (and Gordon Kindlmann’s) submission was accepted to VIS 2014! I’m super happy about this one: it is both the culmination of a five-year discussion (we have the notes to show it!) and, I believe, the...
View ArticleAlgebraic visualization design website
Gordon and I created a website for our algebraic visualization design work. Right now you’ll be able to find a link to the paper, the VIS 2014 presentation, and an introduction to the main ideas that...
View ArticleData Mining, Fairness, Accountability, Visualization
This Friday at the “Fairness, Accountability and Transparency in Machine Learning” workshop, Sorelle will be presenting some work she, Suresh and I have been doing this year. We’ve been studying the...
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Not Spirals
The spirals optical illusion is making therounds again, so I thought it’d be great to have some fun with them.Let’s take some of theseopticalillusions, and play around with them in d3.Squares in...
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