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Answers and rating deltas for

Is there a good algorithm to check for changes in data over a specified period of time?

Author Votes Δ
Anon. 4 +1.78
Wim 3 +0.44
martin clayton 1 -1.45
mcdowella 0 -3.54
Last visited: Sep 14, 2014, 5:07:29 AM