In situations when there is very little training data, or the search topic is very well known, an intelligent keyword search can provide good results fast and without much preparation.
You need to simply give the category a name, a description and some keywords. The analysis will find related topics and highlight them in the document. An intelligent keyword search can also be used to search for a specific word in the text.
The technology is based on exponentially weighted bags of words. Multiple bags of words are designed using Natural Language Processing (NLP) and expert knowledge from the domain. The exponential family of distributions is used to weight the bags for classifying the text.