Problem 42794. Fast 1-D Convolution (same shape)

Created by Peng Liu

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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 with the same input-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,'same'), 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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71 Solutions
15 Solvers

Last Solution submitted on Sep 04, 2025

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li haitao on 16 Nov 2018

The score of re-submit of the leading solution(score is 8) is 54, Why?
The codycomputer slows down?

li haitao on 16 Nov 2018

"score.p" is invalid now, the score is size, not speed.

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Problem 42794. Fast 1-D Convolution (same shape)

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Last 200 Solutions

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Problem Recent Solvers15

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Problem 42794. Fast 1-D Convolution (same shape)

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers15

Suggested Problems

More from this Author29

Problem Tags

Community Treasure Hunt

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