Cosine similarity and tf-idf

Question

I am confused by the following comment about TF-IDF and Cosine Similarity.

I was reading up on both and then on wiki under Cosine

Answer 1

The complete mathematical procedure for cosine similarity is explained in these tutorials

• part-I
• part-II
• part-III

Suppose if you want to calculate cosine similarity between two documents, first step will be to calculate the tf-idf vectors of the two documents. and then find the dot product of these two vectors. Those tutorials will help you :)