text mining

Unsupervised topic modeling is a sophisticated, machine-learning-based technique for extracting “aboutness” information from large collections of documents. That sounds scary, but it’s really something anyone can use -- software packages such as Mallet make it possible for scholars, librarians, and other non-geeks to take advantage of what topic modeling offers, on their laptops, right out of the box.

Slides and Documents: 

CALI 2015 Topic modeling.pptx

Video: