March 2015
Beginner to intermediate
262 pages
5h 28m
English
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Chapter 6. Classifying Texts and Documents
In this chapter, we will demonstrate how to use various NLP APIs to perform text classification. This is not to be confused with text clustering. Clustering is concerned with the identification of text without the use of predefined categories. Classification, in contrast, uses predefined categories. We will focus on text classification where tags are assigned to text to specify its type.
The general approach used to perform text classification starts with the training of a model. The model is validated and then used to classify documents. We will focus on the training and usage steps.
Documents can be classified according to any number of attributes such as its subject, document type, time of publication, ...
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