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David Purcell
Lives in Washington DC
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David Purcell

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The 5 games that stole my childhood
My parents choose to ignore my cries for a console of my own, but my Dad, an engineer for Boeing at the time, did have a 486-66. It ran Windows 3.1 and DOS i-don't-know-which-version. I played around with some...
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David Purcell

Premier League  - 
 
I updated the predictions for next week and added a feature that tracks tweets per minute for a particular team.

http://noise-roc.appspot.com/
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David Purcell

Supervised Learning  - 
 
I have updated the EPL predictions  and social media tracking application: http://noise-roc.appspot.com/

I made use of a couple of python libraries to automate the data extraction and modeling process as well as using d3.js to complete the visuals.

The github project for the predictions is located here: 
https://github.com/amoderate/epl_predict
epl_predict - A simple model to predict epl games - written in python
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David Purcell

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First dinner in Japan 
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I have been using Machine Learning to model EPL matches (think IBM's Watson, just much much less sophisticated) - here are this weeks predictions stacked up against the bookmakers - shocker...Arsenal likely to win...


http://noise-roc.appspot.com/
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I plan to work on that next yes. Unfortunately predicting the winner is a much more complicated simulation then the head to head matches so it may take some time before I have the first cut
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I see what you did there....
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Have him in circles
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Updated predictions for next week.

Arsenal the favorites against West Ham while the man city Liverpool game is a tossup.
Select a team to view the number of tweets per minute: Chelsea; Liverpool; Arsenal; Man City; Spurs; Man Utd; Everton; Newcastle; Southampton; West Ham; Aston Villa; Stoke; Hull; Swansea; Norwich; Crystal Palace; West Brom; Cardiff; Sunderland; Fulham. Select last week's matches or upcomming ...
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Updated Prediction app
Noise Over the last few months I have been developing a new application.  It's purpose is to visualize Premier League trends and predictions by leveraging the freakishly awesome D3.js libraries found at http://d3js.org/ .  I call the app noise , as it is in...
Noise Over the last few months I have been developing a new application.  It's purpose is to visualize Premier League trends and predictions by leveraging the freakishly awesome D3.js libraries found at http://d3js.org/.  I c...
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David Purcell

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Breakfast at grandma's house. 
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David Purcell

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I re-built the EPL model and threw together a simple web app to help visualize the results.  

The tools in use here include: Python for the data munging, Orange for the modeling, and d3.js for the visualization.  

The data prep approach includes the collection of 7 years worth of match results, calculating a rolling average for each team prior to the start of each game (about 2000 observations in total).

Variables include: goals scored, shots on target, penalties received etc for both the home and away teams.

I tried several different algorithms including decision trees, neural networks (bug prevented scoring - so I dropped that approach), SVMs and the old faithful -logistic regression.  I also tried clustering - then training models against each of the clusters.

The SVM ended up proving the most robust when scoring validation data.


http://noise-roc.appspot.com/
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David Purcell

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New EPL predictions
I spent the last week and a half reworking the model and building out the skeleton of a web app to better convey the results. I will expand ...
I spent the last week and a half reworking the model and building out the skeleton of a web app to better convey the results. I will expand on the web app in the near future to include a more holistic, unsupervised look at th...
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People
Have him in circles
42 people
Misaki Purcell's profile photo
Rich Greene's profile photo
Shawn Andersen's profile photo
Arsenal News's profile photo
郑毅's profile photo
Carrie Kahler's profile photo
Dmitry Shulga's profile photo
Thiên Kim Phúc's profile photo
Ana Maria Dominguez's profile photo
Work
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Machine Learning, SAS, Big Data, MPP Databases, Python, SPSS
Basic Information
Gender
Male
Story
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a moderate researcher
Introduction
A wanderer
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Washington DC
Previously
Northern Virginia - Japan - Seattle - Colorado Springs
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Contributor to
David Purcell's +1's are the things they like, agree with, or want to recommend.
Adapting and changing bullet chart components
www.d3noob.org

The following post is a portion of the D3 Tips and Tricks book which is free to download. To use this post in context, consider it with the

Using R and outlier analysis to explore NBA player statistics
rajadatamining.blogspot.com

Recently, I am interested in analyzing outliers in high dimensional data sets. Generally, the outlier analysis includes two parts, outlier d

Udacity - Introduction to Statistics (ST101)
www.udacity.com

Syllabus. Unit 1: Visualizing relationships in data. Seeing relationships in data and predicting based on them; dealing with noise. Unit 2:

Smith Hanley Associates | Recruiters for Finance, Pharmaceuticals, Marke...
www.smithhanley.com

Smith Hanley Associates is a professional recruiting firm focused on recruitment in financial services and investments, pharmaceuticals, mar

RANdom Sample Consensus (RANSAC) in C#
crsouza.blogspot.com

RANSAC is an iterative method to build robust estimates for parameters of a mathematical model from a set of observed data which is known to

NASA: Pursuit Of Light [1080p] [3D converted]
www.youtube.com

Perhaps more than all other federal agencies, NASA tells stories about big things: big places, big data, big ideas. Using extraordinarily hi

Maybe I ordered the wrong thing - but this place is not Mexican - it is Tex-Mex. Their salsa was about as hot as Chicago during the polar vortex. They do have good beers, and the decor was great as was the service, but I am taking points away for passing Tex-Mex off as Mexican.
Public - a year ago
reviewed a year ago
It is not there anymore go to g and 13
Public - 2 years ago
reviewed 2 years ago
2 reviews
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