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Bayes Classification in Ruby

over 4 years ago by Ilya Grigorik on igvita.com.
The Family Guy saga continues. A few days ago the editors of the fan site decided to add a new section: favorite quotes. The users responded with enthusiasm...

Dynamic Stat Graphs in Rails

~5 years ago by Ilya Grigorik on igvita.com.
What started out as a ‘quick feature’ turned out to be a fun Ruby endeavor - below is a guide with some neat Ruby tricks to create dynamic stat...

Mistakes are Lessons in Disguise

~5 years ago by Ilya Grigorik on igvita.com.
Every once in a while you get stuck in a rut. For the past four days I’ve been plugging away at a number of different data-mining algorithms for the...

SVD Recommendation System in Ruby

~5 years ago by Ilya Grigorik on igvita.com.
One day, a bunch of friends, who happened to be big Family Guy fans, decided to put together a site to rank and share their thoughts on the show. Soon thereafter...

Scheduling tasks in Ruby / Rails

almost 5 years ago by Ilya Grigorik on igvita.com. [Linked from: Ruby Inside]
Whether it is retrieving an RSS feed, or performing some maintenance operations on your system or a Rails app, an easy to use scheduler is a must have....

The Non-Paradox of Choice

~5 years ago by Ilya Grigorik on igvita.com.
Decision theory has an interesting idea, an observation really: too much choice may cause paralysis by analysis. This same idea has also been recently popularized...

Choice and the Long Tail at Netflix

~5 years ago by Ilya Grigorik on igvita.com.
A popular article from Wired magazine by Chris Anderson, later turned into a book ‘The Long Tail’, prompted a interesting debate on Hits vs. Blockbusters...

Correlating Netflix and IMDB Datasets

~5 years ago by Ilya Grigorik on igvita.com.
Over this Christmas break I correlated the Netflix dataset (17,700 movies) against the IMDB database. It was a fun and a fairly tedious proof of concept...

World News With Geographic Heatmaps

~5 years ago by Ilya Grigorik on igvita.com.
I stumbled across GeoIQ a few days ago, and I just couldn’t resist. What you see above is a world-news heatmap for November 2004 as seen on Yahoo...

Building Dynamic WEBRick Servers in Ruby

almost 5 years ago by Ilya Grigorik on igvita.com.
Sometimes it’s nice to have a self contained click-’n-run web-server - this way you are not dependent on presence of Apache, Mongrel, or any...