523 search results for "Register"

Estimate Age from First Name

July 29, 2013
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Estimate Age from First Name

Today I read a cute post from Flowing Data on the most trendy names in US history. What caught my attention was a link posted in the article to the source data, which happens to be yearly lists of baby … Continue reading →

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Classification of the Hyper-Spectral and LiDAR Imagery using R (mostly). Part 1: Result Evaluation

July 28, 2013
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Classification of the Hyper-Spectral and LiDAR Imagery using R (mostly). Part 1: Result Evaluation

Introduction There was the EEEI Data Fusion Contest this spring. This year they wanted people to elaborate about hyper-spectral (142-bands imagery) and LiDAR data. The resolution of the data-set was about 5 m.  There were 2 nominations: best classification and  the best scientific paper.  I work with high-resolution imagery quite often, but classification is a very rear task for me...

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Lilac Bloomsday Run in Graphs

July 17, 2013
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Lilac Bloomsday Run in Graphs

The Lilac Bloomsday Run is a 7.46 miles (12 kms) race held annually in Spokane, Washington. The run was started in 1977 by Don Kardong and it saw 51,613 people register for it in 2013. In this post, I use R to collect data from their website, clean and...

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Revolution Newsletter: July 2013

July 15, 2013
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The most recent edition of the Revolution Newsletter came out a couple of weeks ago. In case you missed it, the news section is below, and you can read the full July edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Let’s Be Quick About...

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New Webinar this Wednesday: Using survival analysis for marketing attribution

July 15, 2013
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This Wednesday at 11AM Eastern Time, Revolution Analytics UK Business Services Director Andrie DeVries will present a new webinar, Using Survival Analysis for Marketing Attribution. This webinar will focus on a new application of survival analysis (more traditionally used for life sciences application) to the domain of marketing: A central question in advertising is how to measure the effectiveness...

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Fun with Fremont Bridge Bicyclists

June 27, 2013
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Fun with Fremont Bridge Bicyclists

Given the title of this post and its proximity to the Solstice, you will be disappointed to know that I am not writing about naked bicyclists. I apologize for any false hope I may have instilled in you.On October 11th, 2012, the city of Seattle, WA beg...

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Time Is on My Side – A Small Example for Text Analytics on a Stream

June 23, 2013
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Time Is on My Side – A Small Example for Text Analytics on a Stream

Introduction and Background While my last posting was about recommendation in the context of Location Based Social Networks there are also other interesting topics regarding the analysis of unstructured data. The most established one is probably Text Analytics/Mining focusing on all sorts of text data.For me, coming from spatial analysis, these topic is relatively new but I couldn’t help noticing...

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GRNN and PNN

June 23, 2013
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GRNN and PNN

From the technical prospective, people usually would choose GRNN (general regression neural network) to do the function approximation for the continuous response variable and use PNN (probabilistic neural network) for pattern recognition / classification problems with categorical outcomes. However, from the practical standpoint, it is often not necessary to draw a fine line between GRNN

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Prototyping A General Regression Neural Network with SAS

June 22, 2013
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Prototyping A General Regression Neural Network with SAS

Last time when I read the paper “A General Regression Neural Network” by Donald Specht, it was exactly 10 years ago when I was in the graduate school. After reading again this week, I decided to code it out with SAS macros and make this excellent idea available for the SAS community. The prototype of

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Upcoming Rcpp talk in Sydney

June 20, 2013
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The Sydney Users of R Forum (SURF) will be hosting me for a talk on July 10. The focus will be Rcpp for R and C++ integration, and the intent is to have this be really applied with lots of motivating examples. Organizers Louise and Eugene were able...

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