Question: SECTION B. Short-answer questions (your answer to each question in this section should be no more than 150 words in length) 15. At a high

SECTION B. Short-answer questions (your answer to

SECTION B. Short-answer questions (your answer to each question in this section should be no more than 150 words in length) 15. At a high level, explain the concept of topic modelling, as implemented in the SAS software. What does topic modelling tell us about a document collection and about each document individually? What does a topic represent? How can we validate the results of topic modelling? (10 marks)

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