Cetis Blogs - expert commentary on educational technology » rbloggers http://blogs.cetis.org.uk Specialists in educational technology and standards Tue, 12 May 2015 11:45:38 +0000 en-US hourly 1 http://wordpress.org/?v=4.1.22 Topic Models to explore and compare communities http://paddytherabbit.com/topic-models-explore-compare-communities/ http://paddytherabbit.com/topic-models-explore-compare-communities/#comments Mon, 11 Nov 2013 13:07:39 +0000 http://paddytherabbit.com/?p=471 Recently I’ve been playing with an R wrapper for a machine language library called Mallet  to generate lists of topics from a series of text documents. The technique is called Topic Modelling and I have gotten to grips with it from Ben Marwick‘s readings of archaeology papers which has some excellent reusable code.  A topic […]

The post Topic Models to explore and compare communities appeared first on David Sherlock.

The post Topic Models to explore and compare communities appeared first on Cetis Blogs - expert commentary on educational technology.

]]> Recently I’ve been playing with an R wrapper for a machine language library called Mallet  to generate lists of topics from a series of text documents. The technique is called Topic Modelling and I have gotten to grips with it from Ben Marwick‘s readings of archaeology papers which has some excellent reusable code.  A topic in my model is simply a collection of words that make up the topic. Mallet can do all sorts of fancy things with the words and topics, it can tell me how likely a word is to appear in the topic, analyse text and tell me how much of that text belongs to which topics.

The post Topic Models to explore and compare communities appeared first on Cetis Blogs - expert commentary on educational technology.

]]> http://paddytherabbit.com/topic-models-explore-compare-communities/feed/ 0