In fact, the process of developing each of the test subroutines was based on the results of the comparision using a subset of the data. What I did, in that case, was continuosly creating new tests and outputting to a csv file A, B and the comparision score. I stopped when I got a good result of both a limit score and having few false positives and false negatives. I think you could do it in the same way, no need for anything much sofisticated, just a subset of the database and many runs improving the type of tests you make.
daniel

In reply to Re^3: Fuzzy matching of text strings by ruoso
in thread Fuzzy matching of text strings by srdst13

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