How to create bigram topic models using R.
The data contains 30 documents. Data link: http://hereticsconsulting.files.wordpress.com/2016/01/textmining.zip
NLP alogorithm used - LDA. R packages used - "tm", "topicmodels"
LDA implemented with Gibbs sampling.
References:- https://en.wikipedia.org/wiki/Document-term_matrix https://en.wikipedia.org/wiki/Gibbs_sampling https://en.wikipedia.org/wiki/Random_walk http://tm.r-forge.r-project.org/faq.html#Bigrams https://eight2late.wordpress.com/2015/09/29/a-gentle-introduction-to-topic-modeling-using-r/ http://www.codemiles.com/r-examples/topic-modeling-using-lda-in-r-t11119.html