Distance Value
(Redirected from Distance)
Jump to navigation
Jump to search
A Distance Value is a Non-Negative Real Number Output for the Distance Function (between two Things in a Metric Space).
- Context:
- It must be Zero when the two items are identical.
- It must be constrained by the Triangle Inequality).
- It must be a Positive Number if the two things are not the same things, because 2*Dist(x,y) = Dist(x,y) + Dist(y,x) ≥ Dist(x,x) = 0.
- It can be a Natural Number (for example for the L1 Norm Distance Function - city block distance).
- Example(s):
- 5 <- L2(3,4).
- Vector Distance Value.
- See: Similarity Score.