Match by date

Description

Both inputs A [OBJ,DATE] and B [OBJ,DATE] contain pairs [candidate, evidence]. The block compares the evidence columns from the inputs and return as matches the corresponding candidate objects.

Optional input Cands [OBJ,OBJ] can limit the matching to only the pairs of candidates listed.

  • The first column corresponds to the candidate column of A.

  • The second column corresponds to the candidate column of B.

  • Scores are propagated to final matches.

Input

  • A [OBJ,DATE]: a list of [candidate, evidence] pairs, in which the evidence column will be used for comparison and the candidate column will be the result

  • Cands [OBJ,OBJ] (optional) : candidate pairs, only candidate columns of A and B that are in Cands will be matched

  • B [OBJ,DATE]: a list of [candidate, evidence] pairs, in which the evidence column will be used for comparison and the candidate column will be the result

Output

  • RESULT [OBJ,OBJ]: the matched candidate items from A and B

  • NOTA [OBJ]: the candidate items from A that did not match with an item from B

  • NOTB [OBJ]: the candidate items from B that did not match with an item from A

Parameters

  • Comparison: Comparison function to use (=,!=,<,>,<=,>=,day-distance)

  • Max day-distance: when Comparison is set to day-distance, the match is valid only if the difference in days between the two dates is not greater than this value

  • Slope: positive value determining the slope of the ranking curve. The higher the slope, the closer together the resulting scores.

  • Exclude self-matches: whether to emit the match if the objects in A and B are the same. Mostly useful when A and B come from the same source

  • Exclude symmetrical matches: whether to keep only one between matches A-B and B-A. It cannot be predicted which of the two is kept.