How Do You Categorize Based On Text Content?

Question

How does one automatically find categories for text based on content?

Answer 1

It depends... a lot... Can you elaborate?

Answer 2

There is a good paper written on this: http://www.cs.utexas.edu/users/hyukcho/classificationAlgorithm.html

Answer 3

The best way to categorize content, be it text or multimedia is to use a taxonomy. Most of the well known CMSs have built in support for Taxonomy. Drupal has one of the best support for taxonomy among the various CMSs out there.

Answer 4

1. Read Data Mining: Practical Machine Learning Tools and Techniques - Ian H. Witten, Eibe Frank
2. Use Weka or Orange

Answer 5

I would encourage you to look at the text classification libraries bundled with the Natural Language Toolkit. Even if you're not familiar with Python I think you'll find the API rather intuitive. There are many good examples in the NLTK Book and the people on the mailing list are quite helpful as well.