Match by String (blocking)

Finds matches between the STRING-columns in the inputs. Various comparison options can be chosen: equals, contains, startsWith, endsWith or edit-distance. The result provides both the matching items, and the items from both inputs that didn't generate a match.

• A [OBJ,STRING]: a list of candidates, in which the STRING-column will be used for comparison and the OBJ-column will be the result
• Candidates [OBJ,OBJ]: candidate pairs, only As and Bs that are in Candidates will be matched
• B [OBJ,STRING]: a list of candidates, in which the STRING-column will be used for comparison and the OBJ-column will be the result

• RESULT [OBJ,OBJ]: the matched objects from A and B
• NOTA [OBJ]: the objects from A that did not match with an item from B
• NOTB [OBJ]: the objects from B that did not match with an item from A

• Comparison: Comparison function to use
  • equal: the strings must be equal
  • contains: the string in B must be contained in A
  • containsWholeWord: the string in B must be contained in A, as a whole word (only punctuation/spaces around)
  • startsWith: the string in A must start with B
  • endsWith: the string in A must end with B
  • prefix: strings in A and B share a prefix of a given length
  • levenshtein: the string in A may not have more than Max edit-distance differences (character insertions or deletions) with B.
  • jaro-winkler: the strings in A and B must have a Jaro-Winkler similarity score not smaller than Min similarity.
• Case-sensitive: if set to false, upper/lower case is ignored
• 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