data science amp big data analy

PLEASE NOTE: This written assignment must be submitted through the Course Blackboard Platform in the form of an APA Style Paper (Including a proper Title Page and a proper Reference Page).

Please answer the following questions below from the Check Your Knowledge.

1) What are the two major challenges in the problem of text analysis?

2) What is a reverse index?

3) Why is the corpus metrics dynamic. Provide an example and a scenario that explains the dynamism of the corpus metrics.

4) How does tf-idf enhance the relevance of a search result?

5) List and discuss a few methods that are deployed in text analysis to reduce the dimensions.