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A topic model is a type of statistical model for discovering the abstract "topics" that occur in a collection of documents.

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Choosing words in a topic, which cut-off for LDA topics?

It is important to remember that topic models such as LDA were primarily developed for unsupervised text summarization. So often, there is not a "best" choice for how many top words to show. Most rese …
Ryan Gallagher's user avatar