Playing with Maps 1

Playing with Maps 1

Well, this weekend I got PostGIS working and created some maps of NYC building ages. The OpenGeo suite was very helpful as I used pgShapeLoader …

 

Interaction of Color part 1

Interaction of Color part 1

Just downloaded a new app this afternoon and I’m really excited. Got the Yale alumni newsletter today and it mentioned that there’s a new app …

 

Logistic Regression part 3

Logistic Regression part 3

In the first two posts we covered the conceptual overview and two implementations in R and Python. In this post, let’s talk some more about …

 

Logistic Regression part 2

Logistic Regression part 2

In the last logistic regression post we talked about the meaning of logistic regression, namely that it takes a linear combination of parameters and predictors/independent …

 

Logistic Regression part 1

Logistic Regression part 1

OK, another basic technique in machine learning. As with the other posts, we’ll start off simple and then move to more mathematical and implementation-specific details. …

 

Mahout part 1: Installing on OS X

Mahout part 1: Installing on OS X

Now that I have Mahout installed and running on Lion (OS X 10.7.5), it’s time to try it out on Mountain Lion. In general I …

 

Nearest Neighbors part 1

Nearest Neighbors part 1

Nearest neighbor algorithms are like asking your closest friends for advice- birds of a feather flock together. Use observations in the training set closest in …

 

Latex and Linear Regression

Latex and Linear Regression

Just installed the MathJax-Latex plugin for WordPress. Had to make a configuration change to header.php to load in the Javascript but now equations should be …

 

First real post – Recommender Systems

First real post – Recommender Systems

OK, it’s time to put some content on this blog. Each post will have some visual that relates to the title – if I have …

 

Another D3 Example – this time interactive

Another D3 Example – this time interactive

AKA, another attempt in embedding D3 in WordPress. Another example from Mike Bostock, but this time it’s interactive.   Well nothing appears here.