Efficient replicated remote file comparison

The author improves on some previous work involving data transfer to find the location of disagreements between two or more large remote data files. Some procedures that permit a significant reduction in the number of back-and-forth interchanges are described, one of which significantly reduces the total amount of data transfer required. The older scheme could locate a disagreeing page with an extremely high degree of confidence more than one interchange. The new procedures require at most one back-and-forth interchange for each disagreeing page, often considerably less