After briefly using the match algorithm I noticed it does not include location and many other attributes. From an outside the box view it appears to use a string match for name and date.
For example Sally is not equal to Sal, it is 2 edits away, and Sallen is also 2 edits away from Sally. So, Sal and Sallen are equally different from Sally and both are considered equal matches. Kind of like spell check.
Since this is a wiki I assume the algorithm source code is available to review.
I looked through the questions and I don't see anything this detailed.