Show Map Reduce implementation for the following two tasks using pseudocode. i) Multiplication of two matrices ii) Computing Group-by and aggregation of a relational table

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written 5.1 years ago by

teamques10 ★ 65k

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Let A and B be the two metrics to be multiplied and result be matrix C.
Matrix A has dimension L, M and matrix . has dimension M, N

- Map phase.

For each element (i, j) of A, emit ( ( i, k), A [i, j] ) for K …

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