Maths for ML / Notation

∩\cap

intersection

SetsBeginner

Say it “intersect”

Only what's in both sets.

Example

{1,2}∩{2,3}={2}\{1,2\} \cap \{2,3\} = \{2\}

In code

A & B

Where you’ll see it in ML

Intersection-over-union (IoU) in object detection.

Don’t confuse it with

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