Question

Suppose we run the multistage algorithm on the data of exercise 6.3.1, with the same support threshold of 4. The first pass is the same as in that exercise, and for the second pass, we hash pairs to nine buckets, using the hash function that hashes {i, j} to bucket i + j mod 9. Determine the counts of the buckets on the second pass. Does the second pass reduce the set of candidate pairs

Answer 1

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