Question: 1. Why is K nearest neighbour lazy learning ? Explain by comparing with an eager learning method. What advantage lazy learning method can offer ?

1. Why is K nearest neighbour "lazy learning" ? Explain by comparing with an "eager learning" method. What advantage lazy learning method can offer ?

2. When would you possibly use K nearest neighbour ? What are the three different models of classifying a new test sample,using knearest neighbors in Instance based learning ?

3. How we can modify K nearest neighbour algorithms by giving more weightage to the nearer neighbours?

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