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What is distance measure? List the conditions that a distance measure should meet?
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written 8.0 years ago by |
Suppose we have a set of points, called a space. A distance measure on this space is a function d(x, y) that takes two points in the space as arguments and produces a real number, and satisfies the following axioms:
d(x, y) ≥ 0 (no negative distances).
d(x, y) = …