True or false? The while loop condition: "while node != NULL" in the KD tree algorithm (as specified in the lecture slides) fails specifically when node has no median value associated with it.

James and John were asked whether they liked hiking, fishing, cycling, or reading and which fruit out of apples or oranges, they liked the most. James responded yes, yes, yes, yes and apples, respectively. John responded yes, yes, no, yes and oranges, respectively. What is the Russel-Rao similarity index between James and John's responses? Write your answer correct to 2 decimal places.

Assuming a = (5, 30, 19) and b = (5, 0, 18), if p=1 000 000 000 then the Minkowski metric between a and b is closest to:

Which of the following distance measures are unbounded, where x and y are members of the real number set? Incorrect answers will be penalized.

What is the cosine similarity between points a = (1,0,1,0) and b = (1,1,1,1)? Write your answer correct to 2 decimal places.