3. Topic Modeling and Theme Extraction
Overview
This chapter describes the use of Topic Modeling to understand common themes in a document set by analyzing documents using Amazon Comprehend. You will learn the fundamentals of the algorithm used for Topic Modeling, Latent Dirichlet Allocation (LDA). Learning LDA will allow you to apply Topic Modeling to a multitude of unique business cases. You will then perform Topic Modeling on two documents with a known topic structure. By the end of this chapter, you will be able to extract and analyze common themes through Topic Modeling with Amazon Comprehend and describe the basics of Topic Modeling analysis. You will also be able to perform Topic Modeling on a set of documents and analyze the results. ...
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