Question: question 1 1. Please explain why Inverse Document Frequency is needed in tf-idf model. 2. Please illustrate the reason why Cosine similarity is preferred over

question 1 question 1 1. Please explain why Inverse Document Frequency is needed in

1. Please explain why Inverse Document Frequency is needed in tf-idf model. 2. Please illustrate the reason why Cosine similarity is preferred over Euclidean distance when formalizi proximity in Vector Space Model

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