Posts Tagged ‘ Learning ’

Building a Better Word Cloud

January 27, 2011
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Building a Better Word Cloud

A few weeks ago I attended the NYC Data Visualization and Infographics meetup, which included a talk by Junk Charts blogger Kaiser Fung. Given the topic of his blog, I was a bit shocked that the central theme of his talk was comparing good and bad word clouds. He even stated that the

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Learning R

December 9, 2010
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Learning R

I have had to be primarily self taught in R and I still have a long way to go.  I like R way better than SAS but the documentation in SAS is way better (that's what happens when you pay people to do it full time).  However, there are innumera...

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Jeromy Anglim on Reproducible Research and R

December 6, 2010
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Jeromy Anglim, fellow social scientist and R aficionado from across the globe, gave a great talk to the Melbourne R Users Group last week on the joys of creating reproducible results. A subject near and dear to me, but not one that is given enough attention in research training. Jeromy discusses tools for generating reproducible

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Where People Share Links About NYC

October 27, 2010
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Where People Share Links About NYC

Last week I participated in bit.ly’s fourth hackabit hack-a-thon, which is a wonderful opportunity for NYC area hackers to get together, eat pizza, drink energy drinks, and stay up late hacking with some of the best data geeks around. I was lucky enough to saddle up next to Hilary Mason, bit.ly’s lead scientist, recently named

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In Search of Power-laws: WikiLeaks Edition

August 26, 2010
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In Search of Power-laws: WikiLeaks Edition

Yesterday, a commenter reminded me of the very popular hobby among scientists of searching for power-law distributions in large event data. While the commonality of scale invariance in event data is quite well known—particularly with respect to conflict data—this has not prevented many researchers from seeking and finding these patterns in data. As the commenter notes,

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Leveraging the Wisdom of Crowds for Fantasy Football

August 23, 2010
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Leveraging the Wisdom of Crowds for Fantasy Football

WARNING: This has nothing to do with national security, but is nonetheless awesome. This evening I will be participating in that great annual tradition which marks the transition from Summer to Fall: the fantasy football draft. A large part of having a successful fantasy football draft is being able to adjudicate the value of a player more accurately

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Animated Heatmap of WikiLeaks Report Intensity in Afghanistan

August 17, 2010
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Visualisation of Activity in Afghanistan using the Wikileaks data from Mike Dewar on Vimeo.The latest visualization of the WikiLeaks data compiled by our group is an animation of the intensity of report observations in Afghanistan over the six year period in the WikiLeaks data. Team member Mike Dewar did the vast majority of work for

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Wikileaks Attack Data by Year and Type Projected on Afghanistan Regional Map

August 7, 2010
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Wikileaks Attack Data by Year and Type Projected on Afghanistan Regional Map

Below is a visualization of the Wikileaks data produced in collaboration with Michael Dewar. This plot shows attacks in the data set by year and type, projected onto a map of Afghanistan with district boundaries.This visualization is certainly not perfect, i.e., some colors are difficult to discern, but it does provide added insight to the

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Benford’s Law Tests for Wikileaks Data

August 1, 2010
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Benford’s Law Tests for Wikileaks Data

In my first post on the WL Afghanistan data I provided a very high-level view of the data, and found that it generally met expectations for frequency given its context and presumed data generating process. Next, I will look a bit deeper at this process and test if the observed frequencies of reports have properties

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Local R User Group Panel from useR! 2010 (Video)

July 24, 2010
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As I mentioned last week, I will be hosting videos of several of the keynote speakers from this year’s useR! 2010 conference at the video Rchive. As it happens, the first video I was able to upload was the panel discussion we held on starting local R user groups. I have uploaded the video,

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