Any Data Analytics expert here?
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This is a text analytics problem. I know how to work with tf-idf when a text document is given. Thing is, I'm dealing with a sparse matrix here which describes the text numerically i.e. the columns represents "article_Id", "word_id" and "count". Now I'm supposed to get tf-idf scores to calculate similarity matrices. I know I can define a function to calculate tf-idf scores from scratch but that's a lot of work and I wanted to use built-in functions. Does anyone here seem to know anything about that?