2 years, 7 months ago
When does multistage help?
Mathematical Foundations of Computer Science.
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M$1 Answer
When the number of frequent buckets on the first pass is high (e.g., 50%), but not all buckets. Then, a second hashing with some of the pairs ignored may reduce the number of frequent buckets significantly.
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M$
I voted NBA as this is a direct copy/paste and examville.com is not an acceptable source on Mahalo.