Words in Documents Question 2 (a) Define the TF.IDF score and explain its meaning. [3 marks] (b) Suppose our repository contains 225 documents and word w appears in 210 of them. Compute IDFW- [2 marks] (c) Consider a document D where the maximum number of occurrences of any word is 20. Compute TF.IDF for word w and document D if w appears k = 1,2,4, 10 times in D. [4 marks] (d) Suppose that we have two documents A = {dog, cat, water, air} and B={rice, water, air, land} where the items are the words of the docu- ments. Compute the Jaccard similarity and Jaccard distance of A and B. [3 marks] [Total for Question 2: 12 marks] Words in Documents Question 2 (a) Define the TF.IDF score and explain its meaning. [3 marks] (b) Suppose our repository contains 225 documents and word w appears in 210 of them. Compute IDFW- [2 marks] (c) Consider a document D where the maximum number of occurrences of any word is 20. Compute TF.IDF for word w and document D if w appears k = 1,2,4, 10 times in D. [4 marks] (d) Suppose that we have two documents A = {dog, cat, water, air} and B={rice, water, air, land} where the items are the words of the docu- ments. Compute the Jaccard similarity and Jaccard distance of A and B. [3 marks] [Total for Question 2: 12 marks]