What does KL stand for?

KL can stand for many things, depending on the context. The most common meaning is Kullback-Leibler divergence, a measure of how one probability distribution differs from a second, expected probability distribution.

However, it could also stand for things like:

* Kuala Lumpur, the capital city of Malaysia.

* Kilometer, a unit of length.

* Key Largo, a town in Florida.

* Koninklijke Luchtmacht, the Royal Netherlands Air Force (in Dutch).

To know the correct meaning, you need to consider the context in which you saw the abbreviation.