Screencast: Use Rails and RDF.rb to parse Best Buy product reviews

Posted by Eric Kidd Sun, 05 Jun 2011 19:07:00 GMT

In the past few years, many companies have been embedding machine-readable metadata in their web pages. Among these is Best Buy, which provides extensive RDFa data describing their products, prices and user reviews.

The following 20-minute screencast shows how to use Ruby 1.9.2, Rails 3.1rc1, RDF.rb and my rdf-agraph gem to compare user ratings of the iPad and various Android Honeycomb tablets.

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The state of Ruby, RDF and Rails 3

Posted by Eric Kidd Mon, 20 Dec 2010 19:56:00 GMT

Recently, I was investigating the state of RDF in the Ruby world. Here are some notes, in case anybody is curious. I have used only a few of these Ruby RDF libraries, so please feel free to add your own comments with corrections and other alternatives.

There’s also some stuff about ActiveModel and ActiveRelation down at the end, for people who are interested in Rails 3.

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