Explanation:
Key phrase extraction is used to identify the main topics or concepts present within a set of texts or documents. This helps in determining which documents are about similar topics. Therefore, the correct answer is C: Identifying documents with related topics.
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Select the appropriate application for key phrase extraction technology:
A
Assessing restaurant review sentiments
B
Producing video captions from audio
C
Identifying documents with related topics
D
Document translation between languages