The intensity measure 
of a point process 
relative to a Borel set 
is defined to be the expected
number of points of 
falling in 
.
Symbolically,
![mu(B)=E[N(B)],](/anna-https-mathworld.wolfram.com/images/equations/IntensityMeasure/NumberedEquation1.svg) |
where ![E[Y]](/anna-https-mathworld.wolfram.com/images/equations/IntensityMeasure/Inline6.svg)
denotes the expectation value of 
.
The notion of an intensity measure is intimately connected to one oft-discussed notion of intensity function (Pawlas 2008).
