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Questions about how specific notions have to be understood as well as conventions of notation.
1
vote
1
answer
612
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Why does the map function in MapReduce take two parameters?
I am playing around with MapReduce and wanted to ask why the map function takes two inputs (key, value)? Why not just pass along the value?
Specifically, if you look at the word count example on Wik …
9
votes
2
answers
3k
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Alternative to Hamming distance for permutations
I have two strings, where one is a permutation of the other. I was wondering if there is an alternative to Hamming distance where instead of finding the minimum number of substitutions required, it wo …