a) Given below is the Table which lists the 6 documents along with the if-idf score for the vocabulary items and the class to which they belong to. Classify the two test documents D7 and D8 using Rocchio Classification Algorithm. Doc/ Terms Feather Wings Blood Milk Teeth birth Class D1 1.0 0.85 0.5 0 0 0 BIRD D2 0.72 0.65 0.75 0 0.15 0 BIRD D3 0.65 0.9 0.55 0 0 0 BIRD D4 0.21 0.75 0.8 0.6 0.9 1.0 MAMMAL D5 0 0 0.9 0.78 1.0 0.98 MAMMAL D6 0.32 0.1 0.7 0.73 0.78 0.97 MAMMAL D7 0.43 0.1 0.61 0.1 0.2 0.08 ? D8 0.34 0.03 1 0.65 0.89 0.78