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Problem 42795. Fast 1-D Convolution (valid shape)

Created by Peng Liu in Community

Pursuant to the first problem in the fast 1-D convolution series, this problem asks for the fast algorithm to compute the 1-D convolution in its "valid" output shape.

There exists a fast 1-D convolution algorithm way more efficient than MATLAB's built-in conv function invoked in the form conv(u,v,'valid'), and the performance improvement is more pronounced when length(u) and/or length(v) are large. Do you know how? Try it out.

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Solution Stats

81.82% Correct | 18.18% Incorrect
Last solution submitted on Apr 15, 2019

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