Basically, I have a database of orders. I now want to find which orders have come from the same person (billing information).
A seemingly straightforward problem, but consider that fact that people might order using different credit cards, might be using coporate credit cards that don't have their names on them, etc. I think I'll have to use several functions (or one function) that computes a 'confidence' that two orders are similar.
.. And I get the very strong gut feeling that this will be a matrix problem.
Any suggestions to point me in the right direction?