The overlap coefficient, or Szymkiewicz–Simpson coefficient, is a similarity measure that measures the overlap between two finite sets.
The algorithm takes two vectors denoted by ListAccum
and returns the overlap coefficient between them.
This algorithm is implemented as a user-defined function. You need to follow the steps in Add a User-Defined Function to add the function to GSQL. After adding the function, you can call it in any GSQL query in the same way as a built-in GSQL function.
The overlap coefficient between the two vectors.
Name
Description
Data type
A
An n-dimensional vector denoted by a ListAccum
of length n
ListAccum<INT/UINT/FLOAT/DOUBLE>
B
An n-dimensional vector denoted by a ListAccum
of length n
ListAccum<INT/UINT/FLOAT/DOUBLE>