Lookup [Obj,Double]

Description

Finds all items in B whose first column matches A.

Input

  • A [OBJ]: a list of objects to be searched

  • B [OBJ,DOUBLE]: a list of pairs to be searched with A

Output

  • B1B2 [OBJ,DOUBLE]: B pairs, where the first column matches items in A

  • B2 [DOUBLE]: B values, where the first column matches items in A

Output scores can be aggregated and/or normalised.