10 Topic modeling
This chapter covers
- Introducing topic modeling with latent Dirichlet allocation
- Exploring gensim, an NLP toolkit for topic modeling
- Implementing an unsupervised topic modeling approach using gensim
- Introducing several visualization techniques for topic exploration in data
The previous chapter introduced various NLP and machine-learning techniques for topic classification and topic analysis. Here is a reminder of the scenario that you’ve worked on: suppose you work as a content manager for a large news platform. Your platform hosts texts from a wide variety of authors and mainly specializes in the following set of well-established topics: Politics, Finance, Science, Sports, and Arts. Your task is to decide, for every incoming ...
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