Merge
Description
Finds all items in A
for which the second column matches an object from B
.
Usually used to merge back objects which have previously been split.
Input
A [OBJ,OBJ]
: a list of pairs to be searchedB [OBJ]
: a list of objects to be found inA
Output
A1 [OBJ]
: from the first column ofA
only those items of which the second column matched withB
A1A2 [OBJ,OBJ]
: tuples ofA
where the second column matched withB
A1B1 [OBJ,OBJ]
: tuples(A1,B)
whereA2
matched withB
Output scores can be aggregated and/or normalized.